[go: up one dir, main page]

WO2020033550A1 - Composition de polyoléfine à allongement élevé comprenant une fibre de verre - Google Patents

Composition de polyoléfine à allongement élevé comprenant une fibre de verre Download PDF

Info

Publication number
WO2020033550A1
WO2020033550A1 PCT/US2019/045512 US2019045512W WO2020033550A1 WO 2020033550 A1 WO2020033550 A1 WO 2020033550A1 US 2019045512 W US2019045512 W US 2019045512W WO 2020033550 A1 WO2020033550 A1 WO 2020033550A1
Authority
WO
WIPO (PCT)
Prior art keywords
mpa
astm
thermoplastic composition
measured
accordance
Prior art date
Application number
PCT/US2019/045512
Other languages
English (en)
Inventor
Robert Russell Gallucci
Original Assignee
Sabic Global Technologies B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sabic Global Technologies B.V. filed Critical Sabic Global Technologies B.V.
Publication of WO2020033550A1 publication Critical patent/WO2020033550A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/08—Ingredients agglomerated by treatment with a binding agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/346—Clay
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils

Definitions

  • thermoplastic composition including glass fibers.
  • glass fibers In polyolefins reinforced with glass fibers, good adhesion between the glass fibers and the polymer matrix is desirable for high strength.
  • reinforced thermoplastics the elongation at break and impact strength are reduced. This can result in the formation of brittle injection molded parts that break.
  • a thermoplastic composition comprises 40 to 95 weight percent, preferably 60 to 90 weight percent, more preferably 60 to 85 weight percent of a polyolefin comprising a homopolymer or a copolymer comprising at least 80 weight percent of units derived from polymerization of ethylene, propylene, or a combination thereof; and 5 to 60 weight percent, preferably 10 to 40 weight percent, more preferably 15 to 40 weight percent of a glass fiber coated with a sizing composition, wherein the glass fiber does not adhere to the polyolefin matrix, and wherein all weight percent values are based on the total weight of the composition; preferably wherein an injection molded sample of the thermoplastic composition has a flexural modulus of greater than 2,000 MPa, preferably greater than 3,000 MPa, more preferably greater than 4,000 MPa, measured in accordance with ASTM D790 at 23°C, a flexural strength of 60 MPa or less, preferably 35 to 60 MPa, more preferably 40 to 60 MPA,
  • thermoplastic composition an article prepared from the thermoplastic composition.
  • non-bonding glass fibers sizing-coated glass fibers having poor adhesion to the polyolefin matrix
  • non-bonding glass fibers can be used to achieve a thermoplastic composition having a high modulus, good load bearing capability, and a surprisingly high elongation at break.
  • the molded parts prepared from these compositions do not break into two sections, as is commonly seen for polyolefins including highly-bonding glass fibers.
  • polypropylene compositing including glass fibers that are coated with a coating agent that is highly polar achieves a high modulus and greater than 100% increase of tensile elongation at break compared to polypropylene compositions including glass fibers that are bonding with respect to olefins.
  • a coating agent that is highly polar
  • polypropylene compositions including non-bonding glass fibers retain melt flow and partially retain strength that are typical for polypropylene compositions. In some instances, the use of non-bonding glass fibers in the polypropylene compositions also improves opacity.
  • thermoplastic composition including 40 to 95 weight percent (wt%), preferably 60 to 90 wt%, more preferably 60 to 85 wt% of a polyolefin comprising a homopolymer or a copolymer comprising at least 80 weight percent of units derived from polymerization of ethylene, propylene, or a combination thereof; and 5 to 60 wt%, preferably 10 to 40 wt%, more preferably 15 to 40 wt% of a glass fiber coated with a sizing composition, wherein the glass fiber does not adhere to the polyolefin matrix.
  • the weight percent values are based on the total weight of the thermoplastic composition.
  • Exemplary polyolefins include polyethylenes, including high density
  • HDPE high density polyethylene
  • LDPE low density polyethylene
  • medium density polyethylene medium density polyethylene
  • MDPE linear low density polyethylene
  • LLDPE linear low density polyethylene
  • polypropylenes including atactic, syndiotactic, and isotactic polypropylenes
  • PB-l polybutene-l
  • polyolefin copolymers including copolymers of ethylene and/or propylene with other olefins, and combinations thereof.
  • One or more polyolefins can be used together.
  • the polyolefin can be polyethylene.
  • Polyethylenes are lightweight, semicrystalline thermoplastics that are prepared by the catalytic polymerization of ethylene. Depending on the temperature, pressure, catalyst, and the use of a co-monomer, three basic types of polyethylene can be produced: high-density polyethylene (HDPE), low-density polyethylene (LDPE), and linear low-density polyethylene (LLDPE).
  • HDPE high-density polyethylene
  • LDPE low-density polyethylene
  • LLDPE linear low-density polyethylene
  • LDPE and LLDPE are branched. The branching results in decreased crystallinity and lower density.
  • Most properties of polyethylenes are a function of their density and molecular weight. As density decreases, the strength, modulus, and hardness decrease, and flexibility, impact, and clarity increase. Hence HDPE exhibits greater flexural modulus, rigidity, improved heat deformation resistance, and increased resistance to permeability than LDPE and LLDPE
  • LDPE is prepared at high temperatures and pressures, which results in complex branched molecular structures.
  • the amount of branching and the density can be controlled by the polymerization conditions.
  • LLDPE is prepared by using an a-olefin co-monomer during polymerization. Hence branching is introduced in a controlled manner, and the branch chain length is uniform.
  • Exemplary co-monomers include 1 -butene, 1 -hexene, l-octene, and 4- methyl-l-pentene (4M1P).
  • Specialty grades of polyethylene include very low density (VLDPE), medium density (MDPE), and ultra-high molecular weight polyethylene (UHMWPE).
  • the polyolefin can be polypropylene (PP).
  • Polypropylenes are crystalline or semicrystalline thermoplastics prepared by the catalytic polymerization of propylene. The degree of crystallinity is a function of the geometric orientation of the methyl groups on the polymer chain (backbone).
  • the geometric form of the polypropylene is referred to as“tacticity”.
  • isotactic polypropylene the methyl groups are predominantly aligned on the same side of the polymer backbone.
  • syndiotactic polypropylene the methyl groups have alternating configurations relative to the polymer backbone.
  • the methyl groups are randomly positioned along the polymer backbone.
  • Isotactic polypropylene is highly crystalline, and exhibits lower density, rigidity, good chemical resistance to hydrocarbons, alcohols and oxidizing agents, negligible water absorption, excellent electrical properties, and high flexural modulus.
  • polypropylene has the highest flexural modulus of the commercially available polyolefins.
  • polypropylene has poor impact resistance.
  • Polypropylene-elastomer blends and copolymers have improved impact strength.
  • Unfilled polypropylene has poor flame resistance, and requires the use of flame retardants in certain applications.
  • isotactic and syndiotactic polypropylene will crystallize when cooled from molten states. There are three important crystalline morphologies of isotactic polypropylene. Physical properties of isotactic polypropylene can be controlled to some extent by varying the relative amounts of these crystalline phases. Syndiotactic polypropylene has very different crystalline morphology, and a different balance of flexural modulus and toughness. In general, syndiotactic polypropylene is less crystalline and exhibits greater clarity, elasticity, and impact resistance than other forms. Nucleating agents can control the crystal morphology.
  • Some control of the tacticity of polypropylene can be achieved by the choice of polymerization catalyst.
  • the classic catalysts are Ziegler-Natta catalysts. However, newer metallocene catalysts offer much greater control over tacticity than Ziegler-Natta catalysts.
  • the proper choice of catalyst can produce isotactic, syndiotactic, atactic polypropylene, or a combination of these.
  • Polypropylene thermoplastic elastomers can be obtained when isotactic blocks alternate with atactic blocks.
  • Polypropylene can be copolymerized with ethylene and/or higher a-olefins.
  • the melt temperature (T m ) of polypropylene can be from 140 to l80°C, for example from 150 to 175° C, for example from 155 to l70°C.
  • the crystallization temperature (T c ) of the polypropylene can be from 140 to l70°C, for example from 145 to l65°C, for example from 150 to l60°C.
  • the melt temperature and the crystallization temperature can be measured using DSC according to ASTM D 3418-08 with a scan rate of 20°C per minute using the second heating cycle.
  • the polyolefin can be polybutene- 1.
  • Polybutene- 1 also referred to as polybutylene, poly(l-butene), and PB-l, can be produced by polymerization of l-butene using supported Ziegler-Natta catalysts.
  • Polybutene- 1 is a high molecular weight, linear, isotactic, and semi-crystalline polymer. Isotactic polybutene- 1 exhibits a T m of 110 to 140° C and a T g of -l7° C.
  • Polybutene- 1 is a flexible, linear polyolefin that can be a homopolymer of l-butene or a copolymer with ethylene.
  • Polybutene- 1 combines physical properties of other polyolefins with excellent creep resistance, heat deformation resistance, and resistance to environmental stress cracking. It can also be used in combination with other polyolefins, for example, polyethylene, and polypropylene.
  • the polyolefin can be a polyolefin block copolymer having an end group including, for example consisting essentially of, a polyolefin homopolymer of C 2 to C 3 olefins and a middle block including a copolymer of C2-12 olefins.
  • the polyolefin can be a combination of homopolymer and copolymer, a combination of homopolymers having different melt temperatures, and/or a combination of homopolymers having different melt flow rates.
  • the polyolefin can be a random copolymer of ethylene with a polar monomer, for example vinyl acetate (EVA), methyl acrylate, ethyl acrylate (EEA), butyl acrylate, acrylic acid (EAA), maleic anhydride, glycidyl methacrylate (GMA), and a combination thereof.
  • a polar monomer for example vinyl acetate (EVA), methyl acrylate, ethyl acrylate (EEA), butyl acrylate, acrylic acid (EAA), maleic anhydride, glycidyl methacrylate (GMA), and a combination thereof.
  • the polyolefin can be a polyethylene homopolymer, an ethylene- containing copolymer, a polypropylene homopolymer, a polypropylene-containing copolymer, or a combination thereof, and in particular a polypropylene homopolymer.
  • the polyolefin can be a homopolymer or copolymer having at least 80 weight percent (wt%) of units derived from polymerization of ethylene, propylene, butylene, or a combination thereof.
  • the polyolefin can have at least 95 wt%, based on the weight of the polyolefin, of repeating units derived from propylene.
  • the polypropylene can be a copolymer of propylene and another copolymerizable monomer, where the other
  • copolymerizable monomer can be, for example, ethylene, a C4-12 alkene, a C 1-6-alkyl acrylate, a C 1-6-alkyl methacrylate, or a combination of two or more of the foregoing monomers.
  • the polyolefin can be a propylene polymer that includes a homopolymer of
  • polypropylene or a random, graft, or block copolymer of propylene and at least one olefin that is ethylene or a C4-10 alpha-olefin, with the proviso that the copolymer includes at least 80 wt% of repeating units derived from propylene.
  • the polyolefin can have a crystallinity of 30 to 70%, preferably 40 to 70%, more preferably 50 to 70%.
  • the polyolefin can be a crystalline polypropylene having a crystallinity of 30 to 70%, 40 to 70%, or 50 to 70%.
  • the polyolefin can have a heat of fusion that is from 20 to 150 Joules per gram (J/g).
  • the polyolefin can be polypropylene having a heat of fusion that is from 20 to 150 J/g.
  • the heat of fusion can be from 50 to 100 J/g, and the heat of
  • the crystallization can be from -50 to -100 J/g.
  • the polyolefin can have a crystalline melting temperature from 100 to l70°C and a melt flow rate of 2 to 30 milliliters per ten minutes (mL/l0 min) at 230°C and at a load of 2.16 kg.
  • the polyolefin can optionally include 10 parts per million by weight (ppm) or more of nickel, titanium, zirconium, hafnium, vanadium, calcium, magnesium, aluminum, phosphorous, or a combination comprising at least one of the foregoing.
  • the polyolefin can have less than 50 ppm of an alkyl phthalate.
  • thermoplastic composition further includes 5 to 60 wt% of a glass fiber coated with a sizing composition, based on the total weight of the thermoplastic composition.
  • the thermoplastic composition can include 10 to 40 wt%, more preferably 15 to 40 wt% of a glass fiber, based on the total weight of the thermoplastic composition.
  • the glass fiber coated with the sizing composition can be present in the thermoplastic
  • composition in amount of 5 to 35 wt%, preferably 10 to 30 wt %, more preferably 10 to 25 wt%, based on the total weight of the thermoplastic composition.
  • the composition can further include a plurality of glass fibers that are coated with the sizing composition, wherein the glass fibers and/or the sizing compositions are the same or different.
  • the term“glass” refers to a material, natural or synthetic, which contains silicon dioxide (S1O2) or silica as its main material.
  • the glass fibers can be textile glass fibers such as E, A, C, ECR, R, S, D, and/or NE glass fibers, and are desirably E type glass fibers.
  • the glass fibers can be provided in the form of monofilament or multifilament fibers and can be used either alone or in combination with other types of fibers, for example, co-weaving or core/sheath, side-by-side, skin-core type or matrix and fibril constructions.
  • the glass fibers can be supplied in the form of rovings, woven fibrous reinforcements, such as 0-90 degree fabrics or the like; non-woven fibrous reinforcements such as continuous strand mat, chopped strand mat, tissues, papers and felts or the like; or three-dimensional reinforcements such as braids.
  • the preferred filaments for plastic reinforcement are made by mechanical pulling.
  • the glass fiber can be a chopped glass fiber, long glass fiber, glass filament, woven glass fiber, or a combination thereof.
  • the glass fiber can further be combined with carbon fiber, woven carbon fiber, ceramic fiber, or a combination thereof.
  • the glass fibers can be continuous or chopped, preferably chopped.
  • Glass fibers in the form of chopped strands may have a length of 0.3 millimeters (mm) to 10 centimeters (cm), preferably 0.5 mm to 5 cm or 3 mm to 13 mm.
  • the glass fibers can have a length from 0.2-20 mm, preferably 0.2-10 mm, more preferably 0.7-7 mm.
  • the glass fibers can have any cross-section, such as a round (or circular), flat, bilobe, or irregular cross-section.
  • the average diameter of the glass fibers can be from 1-25 micrometers (pm), preferably 3-20 pm, more preferably 4-18 pm, even more preferably 5-17 pm.
  • the glass fiber can be a short glass fiber having a diameter of 10 pm or 14 pm. In an aspect, the glass fiber has a circular cross-section.
  • Flat glass or bilobe fibers can be used to provide, for example, low warp-high strength-high elongation articles.
  • the glass fibers are coated with a sizing composition such that the coated glass fibers do not adhere to the polyolefin matrix. These coated glass fibers are also referred to herein as“non-bonding glass fibers”. Glass fibers that do not adhere to the polyolefin matrix means the glass fibers are coated with a sizing composition that results in poor adhesion of the coated glass fibers to the polyolefin matrix.
  • a non-bonding glass fiber is coated with a sizing composition that is incompatible with the polyolefin matrix, which is in contrast to a glass fiber coated with a sizing composition that has improved adhesion with the polyolefin matrix (herein referred to as“bonding glass fibers” because they are bonding with respect to the polyolefin).
  • the sizing composition can include, for example, an epoxide, a polyepoxide, an aminosilane, a mercaptosilane, a poly(ether silane) a ureido silane, or a combination thereof.
  • the sizing composition can further include poly(vinyl acetate), polyester, starch, poly(acrylic acid), melamine, poly(vinyl chloride), poly(Ci- 3 alkylene oxide), polyurethane, poly(vinyl alcohol), a Ci -6 organosilane, or a combination thereof.
  • the polyepoxide can be a phenolic epoxy resin, an epoxylated carboxylic acid derivative (e.g., a reaction product of an ester of a polycarboxylic acid having one or more unesterified carboxyl groups with a compound including more than one epoxy group), an epoxidized diene polymer, an epoxidized polyene polymer, or a combination thereof.
  • Exemplary compounds that can be included in the sizing composition include silanes such as tri(Ci- 6 alkoxy)monoamino silane, tri(Ci- 6 alkoxy)diamino silane, tri(Ci- 6 alkoxy)(Ci- 6 alkyl ureido) silane, tri(Ci- 6 alkoxy)(epoxy Ci -6 alkyl) silane, tri(Ci- 6 alkoxy)(glycidoxy Ci -6 alkyl) silane, tri(Ci- 6 alkoxy)(mercapto Ci -6 alkyl) silane, or a combination thereof.
  • silanes such as tri(Ci- 6 alkoxy)monoamino silane, tri(Ci- 6 alkoxy)diamino silane, tri(Ci- 6 alkoxy)(Ci- 6 alkyl ureido) silane, tri(Ci- 6 alkoxy)(epoxy Ci -6 alkyl) silane
  • silanes include (3-aminopropyl)triethoxysilane, (3- glycidoxypropyl)trimethoxysilane, (2-(3,4-epoxycyclohexyl)ethyl)triethoxysilane, (3- mercaptopropyl)trimethoxysilane, (3-(2-aminoethylamino)propyl)triethoxysilane, (3- ureidopropyl)triethoxysilane, or a combination thereof.
  • Other materials that can be included in the sizing composition include, but are not limited to, anti-static agents, other coupling agents, lubricants, wetting agents, or the like.
  • the sizing composition can be used in an amount from 0.1 to 5 wt% based on the weight of the glass fibers.
  • the sizing composition may be applied to the glass fibers by any means, such as immersing the glass fibers in the sizing composition or contacting the glass fibers with an aqueous emulsion or suspension of the sizing composition.
  • Other coating methods include using an aqueous dispersion of the sizing composition applied to the uncoated glass fibers by a roller in a continuous fashion, which can be followed by a heat treatment or curing step.
  • Each glass fiber can be substantially coated (e.g., entirely coated) with the sizing composition, or at least a portion of the glass fiber can be coated with the sizing composition.
  • the amount of the glass fiber that includes the sizing composition is based on the total weight of the glass fibers and the sizing composition.
  • the thermoplastic composition can further include a reactive impact modifier, such as a maleic anhydride functionalized polypropylene (for example, EXXELOR PO1020 obtainable from ExxonMobil Chemical).
  • a reactive impact modifier such as a maleic anhydride functionalized polypropylene (for example, EXXELOR PO1020 obtainable from ExxonMobil Chemical).
  • Other exemplary reactive impact modifiers include polypropylene grafted with a carboxylic acid or a salt thereof, an anhydride, an ester, or a combination thereof.
  • the reactive impact modifier can be present in the thermoplastic composition in an amount of 0.3 to 5 wt% based on the total weight of the thermoplastic composition.
  • the amount of reactive impact modifier depends on the weight of glass fiber (which includes the total weight of the glass fiber and the sizing composition of the coating) and preferably ranges from 0.03 times the weight of glass fiber in the thermoplastic composition to 0.5 times the amount of glass fiber in the thermoplastic composition.
  • the reactive impact modifier will be preferably used in an amount of 0.6 to 2 wt% by total weight of the thermoplastic composition.
  • the reactive impact modifier will be preferably used in an amount of 1.2 to 4 wt% by total weight of the thermoplastic composition.
  • thermoplastic composition can further include a compatibilizer, such as a block copolymer, with at least one block of the copolymer having an affinity to the
  • the compatibilizer can be a copolymer (i) styrene and (ii) at least one of ethylene, propylene, and butylene blocks.
  • a preferred compatibilizer is styrene-ethylene-butylene-styrene (SEBS).
  • SEBS styrene-ethylene-butylene-styrene
  • Other compatibilizers are hydrogenated styrene isoprene copolymer, functionalized metallocene polypropylene waxes, styrene-maleic anhydride copolymers, and hydrogenated styrenic block copolymers.
  • the thermoplastic composition can further include an impact modifier.
  • impact modifiers include natural rubber, fluoroelastomers, ethylene-propylene rubber (EPR), ethylene-butene rubber, ethylene-propylene-diene monomer rubber (EPDM), acrylate rubbers, hydrogenated nitrile rubber (HNBR), silicone elastomers, styrene-butadiene- styrene (SBS), styrene-butadiene rubber (SBR), styrene-ethylene-butylene-styrene (SEBS), acrylonitrile- butadiene-styrene (ABS), acrylonitrile-styrene-acrylate (ASA), acrylonitrile-ethylene-propylene- diene-styrene (AES), styrene-isoprene- styrene (SIS), styrene-(ethylene-propylene)-styren
  • the thermoplastic composition can include an additive composition, with the proviso that the additive(s) do not significantly adversely affect a desired property of the thermoplastic composition.
  • the additive composition or individual additives can be mixed at any time during the mixing of the components for forming the composition.
  • the additive can be soluble or non-soluble in the polyolefin.
  • Exemplary additives include a flow modifier, non- fibrous reinforcing filler, antioxidant, heat stabilizer, light stabilizer, ultraviolet (UV) light stabilizer, UV absorbing additive, plasticizer, lubricant, release agent (such as a mold release agent), antistatic agent, anti-fog agent, antimicrobial agent, colorant (e.g, a dye or pigment), surface effect additive, radiation stabilizer, flame retardant, anti-drip agent, or a combination thereof.
  • the total amount of the additive composition can be 0.001 to 10 wt%, or 0.01 to 5 wt%, each based on the total weight of the thermoplastic composition.
  • Heat stabilizer additives include hindered phenols (e.g., IRGANOX 1010 and IRGANOX 1076), either alone or in combination with organophosphites (e.g. triphenyl phosphite, trimethyl phosphite, tris-(2,6-dimethylphenyl)phosphite, tris-(mixed mono-and di- nonylphenyl)phosphite or the like), phosphonates (e.g, dimethylbenzene phosphonate or the like), or combinations thereof.
  • the heat stabilizer can be tris(2,4-di-t-butylphenyl) phosphite available as IRGAPHOS 168. Heat stabilizers can be used in amounts of 0.01 to 2 wt%, based on the total weight of the thermoplastic composition.
  • plasticizers which include, for example, glycerol tristearate (GTS), phthalic acid esters (e.g, octyl- 4, 5-epoxy-hexahydrophthalate), tris-(octoxycarbonylethyl)isocyanurate, tristearin, di- or polyfunctional aromatic phosphates (e.g, resorcinol tetraphenyl diphosphate (RDP), the bis(diphenyl) phosphate of hydroquinone and the bis(diphenyl) phosphate of bisphenol A); poly- alpha-olefins; epoxidized soybean oil; silicones, including silicone oils (e.g., poly(dimethyl diphenyl siloxanes); esters, for example, fatty acid esters (e.g, alkyl stearyl esters, such as, methyl stearate, stearyl stearate
  • UV stabilizers in particular ultraviolet light (UV) absorbing additives, also referred to as UV stabilizers, include hydroxybenzophenones (e.g., 2-hydroxy-4-n-octoxy benzophenone), hydroxybenzotriazines, cyanoacrylates, oxanilides, benzoxazinones (e.g., 2,2'- (1,4- phenylene)bis(4H-3,l-benzoxazin-4-one, commercially available under the trade name CYASORB UV-3638 from Cytec), aryl salicylates, hydroxybenzotriazoles (e.g., 2-(2-hydroxy- 5-methylphenyl)benzotriazole, 2-(2-hydroxy-5-tert-octylphenyl)benzotriazole, and 2-(2H- benzotriazol-2-yl)-4-(l,l,3,3-tetramethylbutyl)-phenol, commercially available under the trade name CYASORB 54
  • a hindered amine light stabilizer can be used.
  • the UV stabilizers can be present in an amount of 0.01 to 1 wt%, specifically, 0.1 to 0.5 wt%, and more specifically, 0.15 to 0.4 wt%, based upon the total weight of the thermoplastic composition.
  • Non-fibrous reinforcing fillers can include, but are not limited to, glass spheres such as hollow and solid glass spheres, silicate spheres, or the like; kaolin, including hard kaolin, soft kaolin, calcined kaolin, kaolin comprising various coatings known in the art to facilitate compatibility with the polymer matrix, or the like; flaked fillers such as glass flakes, flaked silicon carbide, metal oxides such as aluminum oxide, zinc oxide, zirconium oxide, magnesium oxide, titanium dioxide, or the like; metal salts such as carbonate, sulfate, sulfide, silicate, ferrite salts of calcium, barium, zirconium, aluminum, zinc, magnesium, strontium, or the like; organic fillers such as polytetrafluoroethylene; as well as mica, clay, talc, feldspar, quartz, quartzite, perlite, diatomaceous earth, carbon black, carbon nanotubes, carbon nanoparticles, carbon fibers,
  • the non-fibrous reinforcing filler comprises talc, calcium carbonate, calcium sulfate, barium sulfate, carbon fiber, silica, zinc oxide, zinc sulfide, zirconium oxide, zirconium silicate, strontium sulfate, alumina, anhydrous aluminum silicate, barium ferrite, mica, feldspar, clay, magnesium oxide, magnesium silicate, phenolic resins, wollastonite, or a combination comprising at least one of the foregoing.
  • the thermoplastic composition can further include talc in an amount of 0.1 to 10 wt% based on the total weight of the thermoplastic composition.
  • the thermoplastic composition can include 0.1 to 10 wt% of a microtalc having an average particle size of less than 5 micrometers.
  • talc as a lipophilic mineral, has an affinity for the polyolefin component and can be an effective nucleating agent that enhances polyolefin crystallization.
  • the thermoplastic composition can include a combination of the non-bonding glass fiber and a platy non-fibrous reinforcing filler such as glass flake, mica, or a combination thereof.
  • a platy non-fibrous reinforcing filler such as glass flake, mica, or a combination thereof.
  • combinations of non-bonding glass fiber with platy non-fibrous reinforcing filler can be beneficial in producing molded articles with greater strength and less warp, and with better flatness and improved dimensional stability over use of cylindrical glass fibers.
  • Fillers and reinforcing agents having a high Mohs hardness can degrade the mechanical properties of the compositions, for example by breaking the glass fibers.
  • the composition is substantially free (e.g., including less than 500 ppm) of fillers and reinforcing agent having a high Mohs hardness, which also includes compounds such as inorganic pigments and metal oxides.
  • the composition can be substantially free of titanium dioxide.
  • Antioxidant additives include organophosphites such as tris(nonyl)
  • phenyl)phosphite tris(2,4-di-t-butylphenyl)phosphite, bis(2,4-di-t-butylphenyl)pentaerythritol diphosphite, distearyl pentaerythritol diphosphite; alkylated monophenols or polyphenols;
  • alkylated reaction products of polyphenols with dienes such as tetrakis[methylene(3,5-di-tert- butyl-4-hydroxyhydrocinnamate)] methane; butylated reaction products of para-cresol or dicyclopentadiene; alkylated hydroquinones; hydroxylated thiodiphenyl ethers; alkylidene- bisphenols; benzyl compounds; esters of beta-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionic acid with monohydric or polyhydric alcohols; esters of beta-(5-tert-butyl-4-hydroxy-3- methylphenyl) -propionic acid with monohydric or polyhydric alcohols; esters of thioalkyl or thioaryl compounds such as distearylthiopropionate, dilaurylthiopropionate,
  • Antioxidants can be used in amounts of 0.01 to 0.1 parts by weight, based on 100 parts by weight of the total thermoplastic composition.
  • the thermoplastic composition does not contain any glass fiber that is coated with a sizing composition comprising an olefin or that has improved adhesion with a polyolefin (i.e., does not contain a bonding glass fiber with respect to the polyolefin).
  • bonding glass fibers include glass fibers with a polyolefin coating agent.
  • the polyolefin coating agent can be a polyolefin wax, such as a natural or artificial olefin wax.
  • Polyolefin waxes include polyethylene wax, polypropylene wax, polybutylene wax, copolymers thereof such as polyethylene-propylene wax and polyethylene -butylene wax, alpha olefin-ethylene copolymers, and can also include a polar co-monomer such as an unsaturated carboxylic acid, carboxylic ester, or carboxylic acid salt.
  • Other polyolefin coating agents include paraffin and higher alkyl (e.g., greater than Cs) siloxy and silanol compounds.
  • thermoplastic composition can be manufactured by various methods known in the art.
  • the polyolefin, the non-bonding glass fibers, and other optional components are first blended, optionally with any non-fibrous reinforcing fillers, in a high speed mixer or by hand mixing.
  • the blend can then be fed into the throat of a twin-screw extruder via a hopper.
  • at least one of the components can be incorporated into the
  • thermoplastic composition by feeding it directly into the extruder at the throat or downstream through a sidestuffer, or by being compounded into a masterbatch with a desired polymer and fed into the extruder.
  • the extruder is generally operated at a temperature higher than that necessary to cause the composition to flow.
  • the extrudate can be immediately quenched in a water bath and pelletized.
  • the pellets so prepared can be one-fourth inch long or less as desired. Such pellets can be used for subsequent molding, shaping, or forming.
  • An injection molded sample of the thermoplastic composition can have a flexural modulus of greater than 2,000 mega Pascal (MPa), preferably greater than 3,000 MPa, more preferably greater than 4,000 MPa, measured in accordance with ASTM D790 at 23°C.
  • An injection molded sample thermoplastic composition can have a tensile modulus of greater than 2,000 MPa, preferably greater than 3,000 MPa, more preferably greater than 4,000 MPa, measured in accordance with ASTM D638 at 23 °C.
  • thermoplastic composition can have a tensile elongation at break of greater than 5%, preferably greater than 10%, more preferably greater than 20%, measured in accordance with ASTM D638 at 23°C.
  • the thermoplastic composition can have a tensile elongation of greater than 75%, greater than 80%, or greater than 90%.
  • An injection molded sample of the thermoplastic composition can have a tensile elongation at yield of greater than 2.5%, preferably greater than 5%, more preferably greater than 7.5%, measured in accordance with ASTM D638 at 23°C.
  • an injection molded sample of the thermoplastic composition can have a flexural modulus of greater than 2,000 MPa, preferably greater than 3,000 MPa, more preferably greater than 4,000 MPa; a tensile modulus of greater than 2,000 MPa, preferably greater than 3,000 MPa, more preferably greater than 4,000 MPa; and a tensile elongation of greater than 5%, preferably greater than 10%, more preferably greater than 20%, wherein each property is measured as provided above.
  • An injection molded sample of the thermoplastic composition can have a tensile strength of 45 MPa or less, preferably 20 to 45 MPa, more preferably 30 to 45 MPa, as measured in accordance with ASTM D638 at 23 °C.
  • An injection molded sample of the thermoplastic composition can have a flexural strength of 60 MPa or less, preferably 35 to 60 MPa, more preferably 40 to 60 MPA, as measured in accordance with ASTM D790 at 23°C.
  • an injection molded sample of the thermoplastic composition can have a flexural modulus of greater than 2,000 MPa, preferably greater than 3,000 MPa, more preferably greater than 4,000 MPa, measured in accordance with ASTM D790 at 23°C, a flexural strength of 60 MPa or less, preferably 35 to 60 MPa, more preferably 40 to 60 MPA, as measured in accordance with ASTM D790 at 23°C, a tensile modulus of greater than 2,000 MPa, preferably greater than 3,000 MPa, more preferably greater than 4,000 MPa, measured in accordance with ASTM D638 at 23°C, a tensile strength of 45 MPa or less, preferably 20 to 45 MPa, more preferably 30 to 45 MPa, as measured in accordance with ASTM D638 at 23 °C, and a tensile elongation at break of greater than 5%, preferably greater than 10%, more preferably greater than 20%, measured in accordance with ASTM D638 at 23°C, and
  • An injected molded sample of the thermoplastic composition can have an unnotched Izod impact strength of at least 165 Joules per meter (J/m), preferably at least 170 J/m, more preferably at least 175 J/m, measured in accordance with ASTM D256.
  • an unnotched Izod impact strength of 200 J/m or greater, 250 J/m or greater, or 300 J/m or greater.
  • the thermoplastic composition can have a difference between a melt volume flow rate after 6 minutes and a melt volume flow rate after 18 minutes that is less than or equal to 20%, measured at 230°C under a load of 2.16 Kg in accordance with ASTM D1238.
  • thermoplastic compositions can be molded into useful shaped articles by a variety of methods, such as injection molding, extrusion, rotational molding, blow molding, and thermoforming.
  • Exemplary articles include computer and business machine housings such as housings for monitors, handheld electronic device housings such as housings for cell phones, electrical connectors, and components of lighting fixtures, ornaments, home appliances, roofs, greenhouses, sun rooms, swimming pool enclosures, and the like.
  • the fiber length is typically shorter presumably due to fiber fragmentation during compounding of the composition. The length of such short fibers present in articles can be less than 4 mm.
  • An article prepared from the thermoplastic composition can have improved opacity.
  • the article is a molded article, a film, a sheet, a layer of a multilayer film, or a layer of a multilayer sheet, or is at least one of an automotive bumper, an automotive exterior component, an automobile mirror housing, an automobile grille, an automobile pillar, an automobile wheel cover, an automobile instrument panel or trim, an automobile glove box, an automobile door hardware or other interior trim, an automobile exterior light, an automobile part within the engine compartment, an agricultural tractor or device part, a construction equipment vehicle or device part, a construction or agricultural equipment grille, a marine or personal water craft part, an all-terrain vehicle or all-terrain vehicle part, plumbing equipment, a valve or pump, an air conditioning heating or cooling part, a furnace or heat pump part, a computer part, a computer router, a desk top printer, a large office/industrial printer, an electronics part, a projector part, an electronic display part, a copier part, a scanner part, an electronic printer toner cartridge, a hair drier, an automotive bumper, an automotive exterior component, an
  • the chopped glass fibers have coatings (i.e. sizing) and diameters (10 or 14 micrometers) as specified in Table 1. All glass fibers start with a 4 millimeter (mm) bundle (chop) length. Fiber length is reduced during extrusion and molding due to mechanical attrition. [0060] Samples were prepared as follows. The components were pre-mixed in a paint shaker, and the coated glass fibers were added after initial mixing to prevent excessive fuzzing. The blends were extruded under a minimal vacuum (e.g., 0.15 to 0.6 atmospheres (atm)) on a 30 millimeter (mm) co-rotating twin screw extruder. The extrusion conditions are shown in Table 2.
  • a minimal vacuum e.g. 0.15 to 0.6 atmospheres (atm)
  • compositions were not pre-dried prior to extrusion. Resultant pellets were dried for 2 to 4 hours at l20°C in a forced air-circulating oven. Injection molding using the resultant pellets was performed on an 80 ton van Dorn injection molding machine to provide injection molded parts.
  • Table 2 shows the injection molding parameters.
  • Melt volume flow rate was measured according to ASTM D1238 at 230°C with a 2.16 kg loading for 6 or 18 minutes. MVR is reported as milliliters per 10 minutes (mL/l0 minutes).
  • Unnotched Izod impact (UNI) was measured at 23°C as per ASTM D256 on 3.2 mm thick bars using a 2.27 kg (5 pound) hammer.
  • Crystallinity, melting, and solidification were measured by differential scanning calorimetry (DSC) with a heating rate of 20°C/ min. as per ASTM D3418-15.
  • the sample was heated to melting and the melting temperature (T m ) and the heat of fusion (dH-M) measured in J/g were obtained.
  • T m melting temperature
  • dH-M heat of fusion
  • the molten sample was then cooled at l20°C/ min and the heat of crystallization (solidification) was recoded as a crystallization temperature (T c ) and a heat of crystallization (dH-Tc) is obtained.
  • the polypropylene (PP) used to prepare the compositions was analyzed for the elements of interest, including nickel, calcium, sodium, and phosphorous, using inductively coupled plasma-optical emission spectrometry (ICP-OES).
  • ICP-OES inductively coupled plasma-optical emission spectrometry
  • Each sample was prepared for ICP- OES analysis by acid digestion in an Anton-Paar microwave oven.
  • a two-step, acid digestion was performed in which the sample was first charred in concentrated (95%) sulfuric acid and then fully digested by addition of concentrated nitric acid or 30% hydrogen peroxide to the microwave sample vessel.
  • the resulting solution was then diluted to a fixed volume using deionized water and analyzed using an Agilent ICP-OES instrument to quantify the elements of interest relative to the starting sample weight.
  • Table 3 shows the crystallinity, melting, and solidification properties as measured by DSC, the metals content as determined by ICP-OES, and the MVR for the PP used in the examples.
  • Comparative Examples 1 and 2 are compositions including polypropylene (PP), 30 weight percent (wt%) of bonding glass fibers, 0.1 wt% of a hindered phenol antioxidant, and 0.2 wt% of talc.
  • PP polypropylene
  • wt% bonding glass fibers
  • a hindered phenol antioxidant 0.1 wt% of a hindered phenol antioxidant
  • talc 0.2 wt% of talc.
  • bonding glass fibers sizing compositions GF-l and GF-2, which are olefinic sizing agents
  • good adhesion to the PP matrix was observed, as these bonding glass fibers resulted in high tensile strength (>45 MPa) and flexural strength (>60 MPa), but had lower tensile elongations at break and yield ( ⁇ 5%).
  • the molded parts of Cl and C2 broke into two pieces during flexural testing.
  • the PP compositions having non-bonding glass fibers obtained from polar sizing compositions have mechanical properties that are desirable for various applications such as high modulus structural polyolefin devices.
  • Parts molded from the compositions of El to E4 are particularly suited for applications where it is desirable to avoid or minimize part breakage at flexural yield, for example in automotive vehicle applications to prevent shards of broken glass fiber-reinforced polymer materials from impacting the vehicle occupants and exacerbating injury during a collision.
  • the molded parts could be used, for example, in instrument panels, glove boxes, consoles, cup holder, arm rests, or the like, in passenger vehicles such as cars, trucks, trains, busses, planes and other forms of mass and personal transport.
  • a thermoplastic composition comprising 40 to 95 weight percent, preferably 60 to 90 weight percent, more preferably 60 to 85 weight percent of a polyolefin comprising a homopolymer or a copolymer comprising at least 80 weight percent of units derived from polymerization of ethylene, propylene, or a combination thereof; and 5 to 60 weight percent, preferably 10 to 40 weight percent, more preferably 15 to 40 weight percent of a glass fiber coated with a sizing composition, wherein the glass fiber does not adhere to the polyolefin matrix, and wherein all weight percent values are based on the total weight of the composition; preferably wherein an injection molded sample of the thermoplastic composition has a flexural modulus of greater than 2,000 MPa, preferably greater than 3,000 MPa, more preferably greater than 4,000 MPa, measured in accordance with ASTM D790 at 23°C, a flexural strength of 60 MPa or less, preferably 35 to 60 MPa, more preferably 40 to 60 MPA, as
  • Aspect 2 The thermoplastic composition of Aspect 1, wherein the sizing composition further comprises an epoxide, a polyepoxide, an aminosilane, a mercaptosilane, a poly(ether silane), a ureido silane, poly(vinyl acetate), polyester, starch, poly(acrylic acid), melamine, poly(vinyl chloride), poly(Ci- 3 alkylene oxide), polyurethane, poly(vinyl alcohol), a Ci- 6 organosilane, or a combination thereof.
  • the sizing composition further comprises an epoxide, a polyepoxide, an aminosilane, a mercaptosilane, a poly(ether silane), a ureido silane, poly(vinyl acetate), polyester, starch, poly(acrylic acid), melamine, poly(vinyl chloride), poly(Ci- 3 alkylene oxide), polyurethane, poly(vinyl alcohol),
  • Aspect 2a The thermoplastic composition of Aspect 1 or 2, wherein the sizing composition comprises an aminosilane and a polyepoxide.
  • thermoplastic composition of any one or more of the preceding Aspects wherein the thermoplastic composition does not contain a glass fiber coated with a sizing composition comprising an olefin.
  • Aspect 4 The thermoplastic composition of any one or more of the preceding Aspects, wherein the polyolefin comprises a homopolymer or copolymer comprising at least 90 weight percent of units derived from polymerization of ethylene, propylene, butylene, or a combination thereof.
  • Aspect 5 The thermoplastic composition of any one or more of the preceding Aspects, wherein the polyolefin is a propylene polymer; and wherein the propylene polymer comprises a homopolymer of polypropylene, or a random, graft, or block copolymer of propylene and at least one olefin that is ethylene or a C4-C10 alpha-olefin, with the proviso that the copolymer comprises at least 80 weight percent of repeating units derived from propylene.
  • the polyolefin is a propylene polymer
  • the propylene polymer comprises a homopolymer of polypropylene, or a random, graft, or block copolymer of propylene and at least one olefin that is ethylene or a C4-C10 alpha-olefin, with the proviso that the copolymer comprises at least 80 weight percent of repeating units derived from propylene.
  • Aspect 6 The thermoplastic composition of any one or more of the preceding Aspects, wherein the polyolefin comprises a crystalline polyolefin having a crystallinity of 30 to 70% and a heat of fusion of 20 to 150 J/g, as determined by DSC.
  • Aspect 7 The thermoplastic composition of any one or more of the preceding Aspects, further comprising 0.1 to 50 weight percent of a non-fibrous reinforcing filler, preferably wherein the non-fibrous reinforcing filler comprises talc, quartz, calcium carbonate, calcium sulfate, barium sulfate, silica, zinc oxide, zinc sulfide, zirconium oxide, zirconium silicate, strontium sulfate, alumina, anhydrous aluminum silicate, barium ferrite, mica, feldspar, clay, magnesium oxide, magnesium silicate, a phenolic resin, wollastonite, titanium dioxide, carbon nanotube, carbon nanoparticle, or a combination comprising at least one of the foregoing, more preferably wherein the non-fibrous reinforcing filler is talc and is present in the
  • thermoplastic composition in an amount of 0.1 to 10 weight percent, based on the total weight of the thermoplastic composition.
  • Aspect 8 The thermoplastic composition of any one or more of the preceding Aspects, wherein the composition has an unnotched Izod impact strength of at least 165 J/m, preferably at least 170 J/m, more preferably at least 175 J/m, measured in accordance with ASTM D256.
  • Aspect 9 The thermoplastic composition of any one or more of the preceding Aspects wherein a difference between a melt volume flow rate after 6 minutes and a melt volume flow rate after 18 minutes is less than or equal to 20%, measured at 230°C under a load of 2.16 kg in accordance with ASTM D1238.
  • Aspect 10 The thermoplastic composition of any one or more of the preceding Aspects, wherein the polyolefin is polypropylene, preferably homopolypropylene, the glass fiber is present in an amount of 10 to 50 weight percent, preferably 15 to 35 weight percent, and an injection molded sample of the thermoplastic polymer has a tensile modulus of greater than 2,100 MPa, measured in accordance with ASTM D638 at 23°C, a tensile strength of 40 MPa or less, measured in accordance with ASTM D638 at 23°C, a flexural modulus of greater than 2,100 MPa, measured in accordance with ASTM D790 at 23°C, a flexural strength of 65 MPa or less, measured in accordance with ASTM D790 at 23°C, and an unnotched Izod impact strength of greater than 170 J/m, measured in accordance with ASTM D256.
  • the polyolefin is polypropylene, preferably homopolypropylene
  • the glass fiber
  • Aspect 11 The thermoplastic composition of any one or more of Aspects 1 to 9, wherein the polyolefin is polypropylene, preferably homopolypropylene, the glass fiber is included in an amount of 25 to 40 weight percent, preferably 25 to 35 weight percent, and an injection molded sample of the thermoplastic polymer has a tensile modulus of greater than 4,000 MPa, measured in accordance with ASTM D638 at 23°C, a tensile strength of 35 MPa or less, measured in accordance with ASTM D638 at 23°C, a flexural modulus of greater than 4,000 MPa, measured in accordance with ASTM D790 at 23°C, a flexural strength of 55 MPa or less, measured in accordance with ASTM D790 at 23°C, and an unnotched Izod impact strength of greater than 170 J/m, measured in accordance with ASTM D256.
  • the polyolefin is polypropylene, preferably homopolypropylene
  • the glass fiber is
  • Aspect 12 The thermoplastic composition of any one or more of Aspects 1 to 9, wherein the polyolefin is polypropylene, preferably homopolypropylene, the glass fiber is included in an amount of 5 to 20 weight percent, preferably 5 to 15 weight percent, and an injection molded sample of the thermoplastic polymer has a tensile strength of 30 MPa or less, measured in accordance with ASTM D638 at 23°C, a flexural strength of 45 MPa or less, measured in accordance with ASTM D790 at 23°C, a tensile elongation at break of greater than 75%, preferably greater than 80%, more preferably greater than 90%, measured in accordance with ASTM D638 at 23 °C, and an unnotched Izod impact strength of greater than 300 J/m, measured in accordance with ASTM D256.
  • the polyolefin is polypropylene, preferably homopolypropylene
  • the glass fiber is included in an amount of 5 to 20 weight percent, preferably 5
  • thermoplastic composition of any one or more of the preceding Aspects further comprising 0.1 to 2 wt% of talc, preferably 0.1 to 1 wt% of talc, more preferably 0.1 to 0.5 wt% of talc.
  • Aspect 14 The thermoplastic composition of any one or more of the preceding Aspects, wherein the molded sample of the thermoplastic composition has an elongation at break that is at least 100% greater, preferably at least 500% greater than a molded sample of a comparative thermoplastic composition comprising the same amount of the polyolefin, and the same amount of the glass fiber, wherein the glass fiber of the comparative thermoplastic composition is coated with a polyolefin sizing.
  • Aspect 15 The thermoplastic composition of Aspect 15, wherein a difference between the tensile modulus of the molded sample of the thermoplastic composition and a tensile modulus of the molded sample of the comparative thermoplastic composition is less 25%, preferably less than 20%, more preferably less than 15%.
  • Aspect 16 The thermoplastic composition of Aspect 14 or 15, wherein a difference between the flexural modulus of the molded sample of the thermoplastic composition and a flexural modulus of the molded sample of the comparative thermoplastic composition is less 25%, preferably less than 20%, more preferably less than 15%.
  • Aspect 17 The thermoplastic composition of any one or more of Aspects 14 to
  • thermoplastic composition is no greater than 30% less, preferably no greater than 25% less, more preferably no greater than 20% less than a tensile strength of the molded sample of the comparative thermoplastic composition.
  • Aspect 18 The thermoplastic composition of any one or more of Aspects 14 to
  • the flexural strength of the molded sample of the thermoplastic composition is no greater than 30% less, preferably no greater than 25% less, more preferably no greater than 20% less than a flexural strength of the molded sample of the comparative thermoplastic composition.
  • Aspect 19 The thermoplastic composition of any one or more of Aspects 14 to
  • the unnotched Izod impact strength of the molded sample of the thermoplastic composition is at least 5% greater than, preferably at least 10% greater than, more preferably at least 20% greater than an unnotched Izod impact strength of the molded sample of the comparative thermoplastic composition.
  • Aspect 20 An article prepared from the thermoplastic composition of any one or more of Aspects 1 to 19.
  • Aspect 21 The article of Aspect 20, wherein the article is a molded article, a film, a sheet, a layer of a multilayer film, or a layer of a multilayer sheet, or is at least one of an automotive bumper, an automotive exterior component, an automobile mirror housing, an automobile grille, an automobile pillar, an automobile wheel cover, an automobile instrument panel or trim, an automobile glove box, an automobile door hardware or other interior trim, an automobile exterior light, an automobile part within the engine compartment, an agricultural tractor or device part, a construction equipment vehicle or device part, a construction or agricultural equipment grille, a marine or personal water craft part, an all-terrain vehicle or all- terrain vehicle part, plumbing equipment, a valve or pump, an air conditioning heating or cooling part, a furnace or heat pump part, a computer part, a computer router, a desk top printer, a large office/industrial printer, an electronics part, a projector part, an electronic display part, a copier part, a scanner part, an electronic printer toner cartridge, a hair
  • Aspect 22 The thermoplastic composition or article of any one or more of the preceding Aspects, comprising 60 to 85 wt% of a polypropylene homopolymer, 20 to 35 wt% of a chopped E-glass fiber having a diameter of 10 or 14 micrometers, and 0.1 to 1 wt% of talc, wherein the sizing composition comprises an aminosilane, and an injection molded sample of the thermoplastic composition has an unnotched Izod impact strength of 170 J/m or greater, a tensile elongation at break of 20% or greater, a tensile strength of 45 MPa or less, and a flexural strength of 60 MPa or less.
  • Aspect 23 The thermoplastic composition or article of any one or more of the preceding Aspects, comprising 40 to 95 wt% of a polypropylene homopolymer, and 5 to 15 wt% of a chopped E-glass fiber having a diameter of 10 or 14 micrometers, wherein the sizing composition comprises an aminosilane, and an injection molded sample of the thermoplastic composition has an unnotched Izod impact strength of 300 J/m or greater, a tensile strength of 35 MPa or less, and a flexural strength of 50 MPa or less.
  • compositions, methods, and articles can alternatively comprise, consist of, or consist essentially of, any appropriate materials, steps, or components herein disclosed.
  • the compositions, methods, and articles can additionally, or alternatively, be formulated so as to be devoid, or substantially free, of any materials (or species), steps, or components, that are otherwise not necessary to the achievement of the function or objectives of the compositions, methods, and articles.
  • hydrocarbyl and“hydrocarbon” refer to any chemical group comprising at least hydrogen and carbon.
  • Alkyl means a branched or straight chain, unsaturated hydrocarbon group.
  • Alkoxy means an alkyl group that is linked via an oxygen (i.e., alkyl-O-), for example methoxy, ethoxy, and sec-butyloxy groups.
  • Alkylene means a straight or branched chain, saturated, divalent aliphatic hydrocarbon group (e.g., methylene (-CH 2 -) or, propylene (-(CH 2 ) 3 - )).
  • Cycloalkylene means a divalent cyclic alkylene group, -C n H 2n-x , wherein x is the number of hydrogens replaced by cyclization(s).
  • Cycloalkenyl means a monovalent mono- or multicyclic group having one or more carbon-carbon double bonds in the ring, wherein ah ring members are carbon (e.g., cyclopentyl and cyclohexyl).
  • Aryl means an aromatic hydrocarbon group containing the specified number of carbon atoms, such as phenyl, tropone, indanyl, or naphthyl.
  • Arylene means a divalent aryl group.
  • Alkylarylene means an arylene group substituted with an alkyl group.
  • Arylalkylene means an alkylene group substituted with an aryl group (e.g., benzyl).
  • halo means a group or compound including one more of a fluoro, chloro, bromo, or iodo substituent. A combination of different halo groups (e.g., bromo and fluoro), or only chloro groups can be present.
  • hetero means that the compound or group includes at least one ring member that is a heteroatom (e.g., 1, 2, or 3 heteroatom(s)), wherein the heteroatom(s) is each independently N, O, S, Si, or P.
  • a heteroatom e.g., 1, 2, or 3 heteroatom(s)
  • each of the foregoing groups can be unsubstituted or substituted, provided that the substitution does not significantly adversely affect synthesis, stability, or use of the compound.“Substituted” means that the compound, group, or atom is substituted with at least one (e.g., 1, 2, 3, or 4) substituents instead of hydrogen, where each substituent is independently nitro (-N0 2 ), cyano (-CN), hydroxy (-OH), halogen, thiol (-SH), thiocyano (-SCN), Ci -6 alkyl, C 2 -6 alkenyl, C 2 -6 alkynyl, Ci -6 haloalkyl, C1-9 alkoxy, Ci -6 haloalkoxy, C 3-i2 cycloalkyl, C5-18 cycloalkenyl, C 6-i2 aryl, C7-13 arylalkylene (e.g., benzyl), C 7-i2
  • the indicated number of carbon atoms is the number of carbon atoms in the compound or group, excluding those of any substituents.
  • a group of the formula - CH 2 CH 2 CN is a substituted C 2 alkyl group, in other words a C 2 alkyl group that is substituted with a cyano group.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention concerne une composition thermoplastique comprenant de 40 à 95 % en poids d'une polyoléfine comportant un homopolymère ou un copolymère comprenant au moins 80 % en poids d'unités dérivées de la polymérisation de l'éthylène, du propylène, ou d'une combinaison de ceux-ci ; et de 5 à 60 % en poids d'une fibre de verre revêtue d'une composition d'encollage, la fibre de verre n'adhérant pas à la matrice de polyoléfine et, de préférence, un échantillon moulé par injection de la composition thermoplastique ayant un module de flexion supérieur à 2 000, une résistance à la flexion de 60 MPa ou moins, un module de traction supérieur à 2 000 MPa, une résistance à la traction de 45 MPa ou moins, et un allongement à la traction à la rupture supérieur à 5 % selon la norme ASTM D638 à 23 °C.
PCT/US2019/045512 2018-08-07 2019-08-07 Composition de polyoléfine à allongement élevé comprenant une fibre de verre WO2020033550A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18187879.4 2018-08-07
EP18187879 2018-08-07

Publications (1)

Publication Number Publication Date
WO2020033550A1 true WO2020033550A1 (fr) 2020-02-13

Family

ID=63174024

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2019/045512 WO2020033550A1 (fr) 2018-08-07 2019-08-07 Composition de polyoléfine à allongement élevé comprenant une fibre de verre

Country Status (1)

Country Link
WO (1) WO2020033550A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111875905A (zh) * 2020-08-20 2020-11-03 唐山鸿蕴医疗用品有限公司 一种高强度pvc手套及其生产方法
CN113981558A (zh) * 2021-10-22 2022-01-28 山东莱威新材料有限公司 一种超高分子量聚乙烯防护网材料及其制备方法
CN114685892A (zh) * 2022-03-31 2022-07-01 金发科技股份有限公司 一种高刚性、耐划伤的聚丙烯组合物及其制备方法和应用
WO2023055728A1 (fr) * 2021-10-01 2023-04-06 Celanese International Corporation Composition de polypropylène renforcé par des fibres de verre à faible émission
CN116285103A (zh) * 2023-03-03 2023-06-23 广东聚石化学股份有限公司 一种耐老化聚丙烯复合材料及其制备方法和应用
CN118421006A (zh) * 2024-05-23 2024-08-02 惠州市天博科兴薄膜科技有限公司 一种pp薄膜及其制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050043443A1 (en) * 2003-08-18 2005-02-24 Van Mullekom Robert Hubertus Molding compositions and their use
WO2013170452A1 (fr) * 2012-05-16 2013-11-21 Sabic Innovative Plastics Ip B.V. Composition de polycarbonate
EP2805995A1 (fr) * 2012-01-20 2014-11-26 Toray Industries, Inc. Composition de résine de polypropylène renforcée par des fibres, matériau de moulage et préimprégné
EP3333222A1 (fr) * 2016-12-12 2018-06-13 SABIC Global Technologies B.V. Composition comprenant un copolymère de propylène hétérophasique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050043443A1 (en) * 2003-08-18 2005-02-24 Van Mullekom Robert Hubertus Molding compositions and their use
EP2805995A1 (fr) * 2012-01-20 2014-11-26 Toray Industries, Inc. Composition de résine de polypropylène renforcée par des fibres, matériau de moulage et préimprégné
WO2013170452A1 (fr) * 2012-05-16 2013-11-21 Sabic Innovative Plastics Ip B.V. Composition de polycarbonate
EP3333222A1 (fr) * 2016-12-12 2018-06-13 SABIC Global Technologies B.V. Composition comprenant un copolymère de propylène hétérophasique

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111875905A (zh) * 2020-08-20 2020-11-03 唐山鸿蕴医疗用品有限公司 一种高强度pvc手套及其生产方法
WO2023055728A1 (fr) * 2021-10-01 2023-04-06 Celanese International Corporation Composition de polypropylène renforcé par des fibres de verre à faible émission
CN113981558A (zh) * 2021-10-22 2022-01-28 山东莱威新材料有限公司 一种超高分子量聚乙烯防护网材料及其制备方法
CN114685892A (zh) * 2022-03-31 2022-07-01 金发科技股份有限公司 一种高刚性、耐划伤的聚丙烯组合物及其制备方法和应用
CN116285103A (zh) * 2023-03-03 2023-06-23 广东聚石化学股份有限公司 一种耐老化聚丙烯复合材料及其制备方法和应用
CN118421006A (zh) * 2024-05-23 2024-08-02 惠州市天博科兴薄膜科技有限公司 一种pp薄膜及其制备方法

Similar Documents

Publication Publication Date Title
WO2020033550A1 (fr) Composition de polyoléfine à allongement élevé comprenant une fibre de verre
CN108727811B (zh) 聚酰胺模塑料及由其制备的模塑制品
US20240336750A1 (en) Reinforced polyester structural components
JP6741554B2 (ja) 車両内装部品用ポリブチレンテレフタレート樹脂組成物
EP3259318B1 (fr) Composition de polycarbonate renforcée à résistance améliorée aux chocs
JP6815867B2 (ja) ポリオレフィン樹脂組成物、成形品および車両用外板
EP3262097A1 (fr) Mélanges de polymères comprenant du polycarbonate et du méthacrylate de polyméthyle
JP5124663B2 (ja) マスターバッチペレット及びプロピレン樹脂組成物成形体の製造方法
US20240294747A1 (en) Noise reducing filled polyester
EP3133107A1 (fr) Compositions de polyoléfine contenant des concentrations élevées de fibres de renforcement et des procédés de préparation
CN111349327A (zh) 阻燃性玻璃填充的聚碳酸酯组合物
WO2016170468A1 (fr) Mélanges à base de polycarbonate ayant une résistance thermique améliorée
WO2023055728A1 (fr) Composition de polypropylène renforcé par des fibres de verre à faible émission
JP6378678B2 (ja) プロピレン系重合体組成物からなる自動二輪車用リアグリップ
WO2022004551A1 (fr) Composition de résine à base de polypropylène
WO2020033547A1 (fr) Compositions de polyoléfine et de polycarbonate avec fibre de verre
EP3363858A1 (fr) Compositions de dispersions de polyoléfine et lactices et mélanges polymères préparés à partir de celles-ci
WO2024147037A1 (fr) Composition thermoplastique, son procédé de fabrication et articles fabriqués à partir de celle-ci
EP4056603A1 (fr) Composition d'un (co)polymère de méthacrylat et d'un blockcopolymère poly(carbonate-siloxane) et son utilisation dans des articles résistants aux rayures et aux chocs
EP4174130A1 (fr) Composition de résine à base de polypropylène
EP3262096A1 (fr) Mélanges de polycarbonate et de polymères à cristaux liquides
JP2022119178A (ja) プロピレン系樹脂組成物およびその用途
JP2022119179A (ja) プロピレン系樹脂組成物およびその用途
JP2014185297A (ja) ポリプロピレン樹脂組成物および成形体
Mohan Sharma Mechanical behavior, water absorption and morphology of wheat straw, talc, mica and wollastonite filled polypropylene composites

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19756296

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19756296

Country of ref document: EP

Kind code of ref document: A1