WO2009149845A1 - Geschäumte polyester und verfahren zu deren herstellung - Google Patents
Geschäumte polyester und verfahren zu deren herstellung Download PDFInfo
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- WO2009149845A1 WO2009149845A1 PCT/EP2009/003911 EP2009003911W WO2009149845A1 WO 2009149845 A1 WO2009149845 A1 WO 2009149845A1 EP 2009003911 W EP2009003911 W EP 2009003911W WO 2009149845 A1 WO2009149845 A1 WO 2009149845A1
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- elastomers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/22—After-treatment of expandable particles; Forming foamed products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
- B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
- C08J2201/022—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments premixing or pre-blending a part of the components of a foamable composition, e.g. premixing the polyol with the blowing agent, surfactant and catalyst and only adding the isocyanate at the time of foaming
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
- C08J2201/03—Extrusion of the foamable blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/06—CO2, N2 or noble gases
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2205/00—Foams characterised by their properties
- C08J2205/04—Foams characterised by their properties characterised by the foam pores
- C08J2205/052—Closed cells, i.e. more than 50% of the pores are closed
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2400/00—Characterised by the use of unspecified polymers
- C08J2400/14—Water soluble or water swellable polymers, e.g. aqueous gels
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/092—Polycarboxylic acids
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
- C08K5/1535—Five-membered rings
- C08K5/1539—Cyclic anhydrides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
- C08L67/025—Polyesters derived from dicarboxylic acids and dihydroxy compounds containing polyether sequences
Definitions
- the invention relates to foam bodies of thermoplastic polyesters, with high homogeneity, low open-cell content and high shear fracture elongation, containing as modifier dianhydrides of tetracarboxylic acids, means for producing the foamed bodies and processes for producing foamed polyesters.
- thermoplastic polyesters suitable for extrusion foaming have, for example, an intrinsic viscosity of more than 0.8 dl / g.
- a two-stage process is described, according to which a polyester having an intrinsic viscosity higher than 0.52 dl / g is added with a dianhydride of an organic tetracarboxylic acid and reacted to form a polyester having an intrinsic viscosity of 0.85 to 1.95 dl / g.
- the foaming process by extrusion foaming can be initiated with the thus prepared polyester.
- further dianhydride can be added to an organic tetracarboxylic acid during extrusion foaming.
- foamed polyester can be obtained by forming a molten mixture and extruding this mixture.
- the mixture is made up of a major portion of polyester and a smaller portion of one Mixture of polyester with a substance formed, the chain extension, resp. Branch, causes.
- the invention has for its object to propose foams made of polyester, means for their preparation and a process for their preparation in order to foam, resp.
- Particularly sought-after foams of polyester have, for example, low density, high homogeneity, low open-celledness, high strength and, in particular, high shear fracture elongation.
- the foaming of polyesters to foam bodies is difficult to control process.
- intrinsically viscous polyesters (IV) can either not be foamed at all or, if foaming is still possible, the foams have poor properties, such as varying high density, high open-celledness, irregular pore distribution and low shear fracture elongation.
- the polyester foam of the foam body contains at least one thermoplastic elastomer.
- foamed bodies of polyesters according to the invention contain thermoplastic elastomers in amounts of from 0.5 to 15.0% by weight, based on the weight of the foam body.
- thermoplastic elastomers from 0.5 to 12 wt .-%, and preferably from 1, 5 to 12% by weight, each based on the weight of the foam body.
- the foam bodies of polyesters according to the present invention advantageously comprise as thermoplastic elastomers polymer blends or thermoplastic copolyester elastomers.
- Thermoplastic elastomers consist of or contain polymers or a polymer blend (blend) which exhibits properties at service temperature. Similar to vulcanized rubber, but which can be processed and worked up at elevated temperatures like a thermoplastic.
- the polymer blends have a polymer matrix of hard thermoplastic with incorporated particles of soft crosslinked or uncrosslinked elastomers.
- the thermoplastic copolyester elastomers contain hard thermoplastic sequences and soft elastomeric sequences.
- thermoplastic copolyester elastomers contain polyester blocks, expediently from a diol, preferably from 1,4-butanediol or 1,2-ethanediol, and a dicarboxylic acid, preferably terephthalic acid, which are reacted with polyesters which carry hydroxyl end groups in a condensation reaction - were restert.
- Thermoplastic elastomers are also known under the abbreviation TPE and the subgroups TPO (thermoplastic olefin elastomers), TPS (thermoplastic styrene elastomers), TPV (thermoplastic rubber vulcanizates), TPU (thermoplastic urethane elastomers), TPA (thermoplastic polyamide elastomers), TPC (thermoplastic copolyester elastomers) and TPZ (other unclassified thermoplastic elastomers) known.
- TPE thermoplastic olefin elastomers
- TPS thermoplastic styrene elastomers
- TPV thermoplastic rubber vulcanizates
- TPU thermoplastic urethane elastomers
- TPA thermoplastic polyamide elastomers
- TPC thermoplastic copolyester elastomers
- TPZ other unclassified thermoplastic elastomers
- the TPEs include block or segmented polymers such as thermoplastic styrenic block polymers, thermoplastic copolyesters, polyetheresters, thermoplastic polyurethanes or polyether-polyamide block copolymers.
- the TPEs obtain their elastomeric properties either by copolymerizing hard and soft blocks or blending a thermoplastic matrix. In the case of graft copolymerization, the hard segments form so-called domains, which function as physical crosslinks. TPE are repeatedly melted and processed.
- the TPE described as thermoplastic copolyester elastomers, resp.
- TPC also called TPC
- TPC-EE are divided into the TPC-EE with soft segments with ether and ester linkages and the TPC-ES / -ET with soft polyester segments, respectively.
- Polyether In the present case, the TPC-EE are of particular interest.
- the thermoplastic copolyester elastomers, resp. thermoplastic copolyester or thermoplastic polyetherester, resp. elastomeric copolyether restoratives are alternately composed of hard polyester segments and soft polyether segments. Depending on the type and length of the hard and soft segments, a wide hardness range is adjustable.
- Thermoplastic copolyesters are block copolymers consisting on the one hand of amorphous soft segments of polyalkylene ether diols and / or long-chain aliphatic dicarboxylic acid esters and on the other hand of hard segments of crystalline polybutylene terephthalate.
- the preparation of the elastomeric copolyether esters takes place in the melt by transesterification reactions between a terephthalate ester, a polyalkylene ether glycol (eg polytetramethylene ether glycol, polyethylene oxide glycol or polypropylene oxide glycol) and a short-chain diol, for example 1,4-butanediol or 1,2-ethanediol.
- a modifier can be added to the polyester.
- the modifier is, for example, a dianhydride of an organic tetracarboxylic acid (tetracarboxylic acid dianhydride).
- Preferred dianhydrides are the dianhydrides of the following tetracarboxylic acids:
- Benzene-1, 2,4,5-tetracarboxylic acid (pyromellitic acid), 3,3 ', 4,4'-diphenyltetracarboxylic acid, 3,3', 4,4'-benzophenonetetracarboxylic acid, 2,2-bis- (3,4-) dicarboxyphenyl) -propane, bis (3,4-dicarboxyphenyl) ether, bis (3,4-dicarboxylphenyl) thioether, naphthalene-2,3,6,7-tetracarboxylic acid, bis (3,4-dicarboxylphenyl) sulfone, tetrahydrofuran-2,3,4,5-tetracarboxylic acid, 2,2-bis (3,4-dicarboxlphenyl) hexafluoropropane, 1, 2,5,6-naphthalenetetracarboxylic acid, bis (3,4-dicarboxyphenyl) - sulfoxide and
- polyesters such as thermoplastic polyesters obtainable by polycondensation of aromatic dicarboxylic acids with diols.
- aromatic acids are terephthalic and isophthalic acids, naphthalene dicarboxylic acids and diphenyl ether dicarboxylic acids.
- diols are glycols such as ethylene glycol, tetraethylene glycol, cyclohexanedimethanol, 1,4-butanediol and 1,2-ethanediol.
- Polyesters of or containing polyethylene terephthalate, polybutylene terephthalate and polyethylene terephthalate copolymers containing up to 20% of isophthalic acid are preferred.
- a particularly important feature of the polyesters used as starting material, which are modified according to the invention and foamed to form the foam bodies according to the invention, is the intrinsic viscosity. It has not been possible to produce foams starting from polyesters having an intrinsic viscosity of about 0.4 dl / g. According to the present invention, starting materials, such as of polyesters having an intrinsic viscosity as low as about 0.4 dl / g and above, and especially of polyesters having an intrinsic viscosity of, for example, 0.6 to 0.7 dl / g and above, can reliably form foams be manufactured with the required properties.
- the proportion of modifier, in particular the tetracarboxylic dianhydride, based on the polyester used, must be increased accordingly.
- concentration of modifier in the masterbatch and the amount of masterbatch used with respect to the amount of polyester the intrinsic viscosity of the processed polyester, and hence its foamability, is easily controlled.
- the intrinsic viscosity of 0.6 to 0.7 dl / g can be increased by the modification to above 1, 0 or even 1, 2 dl / g and above.
- the present invention also relates to compositions for producing foam bodies from polyesters of high homogeneity, low open-cell content and high shear fracture strain, containing as modifier dianhydrides of tetracarboxylic acids.
- the compositions are a masterbatch containing thermoplastic elastomers, such as copolyester thermoplastic elastomers, in amounts of from 25 to 95% by weight, based on the weight of the composition, and dianhydrides of tetracarboxylic acids in amounts of from 5 to 30% by weight, based on the weight of the agent.
- compositions for producing foam bodies from polyesters where the composition is a masterbatch comprising thermoplastic copolyester elastomers in amounts of from 25 to 95% by weight and dianhydrides of a tetracarboxylic acid in amounts of from 5 to 30% by weight and 0 to 70%, preferably 1 to 50 wt .-%, each based on the weight of the composition, stabilizers, nucleating agents, flame retardants and / or polyester, suitably a polyester of the same quality, such as a starting polyester to be modified.
- the means i. the premix can be prefabricated and stored temporarily on a case-by-case basis. Thereafter, in the quantities provided, the premix and the polyesters to be foamed can be mixed together. This mixture of premix and polyesters can be further fed to the foaming process and processed into foam bodies.
- the present invention also relates to a process for the preparation of foam bodies of polyesters of high homogeneity and shear rate elongation, containing as modifying agent dianhydrides of a tetracarboxylic acid.
- a polyester resin is admixed with a premix of thermoplastic elastomers, such as thermoplastic copolyester elastomers, and dianhydrides of a tetracarboxylic acid, to give a foam body, containing the ther- moplastic copolyester elastomers in amounts of 0.5 to 15 wt .-%, based on the weight of the foam body, foamed.
- thermoplastic elastomers such as thermoplastic copolyester elastomers, and dianhydrides of a tetracarboxylic acid
- thermoplastic elastomers such as thermoplastic co-polyester elastomers and dianhydrides of a tetracarboxylic acid is prepared as a precursor by mixing the ingredients.
- the masterbatch may contain from 25 to 95% by weight, based on the premix, copolyester elastomers and from 5 to 30% by weight, based on the masterbatch, of tetracarboxylic dianhydride.
- the premix contains 50 to 90 wt .-%, preferably 80 to 90 wt .-%, based on the masterbatch, copolyester elastomers and 10 to 25 wt%, preferably 10 to 15 wt .-%, based on the premix, tetracarboxylic dianhydride ,
- the premix may contain as further constituents, for example a total of 0 to 70%, preferably 0.1 to 70% by weight and in particular 1 to 50% by weight, for example polyesters, stabilizers, nucleating agents, fillers and flame retardants.
- the polyesters listed on the other components may be of the same quality as the polyesters to be modified, i. Starting polyester, e.g. with an intrinsic viscosity above about 0.4 dl / g and in particular polyester having an intrinsic viscosity of about 0.6 to 0.7 dl / g and above, be.
- the preparation of the premix can be carried out by feeding the components into a mixer, for example a screw extruder, such as a single- or twin-screw extruder or a multi-screw extruder etc., and intimately mixing the components over a period of 10 to 120 seconds at temperatures of 200 to 260 0 C take place.
- the premix can be discharged from the mixer and be granulated in a further processable form, for example.
- a polyester with a - Intrinsic viscosity of at least 0.4 dl / g submitted and mixed with the premix.
- the premix can be used in amounts of 1, 0 to 20.0 wt .-%, based on the polyester.
- additional components can be added to the mixing and foaming process, in addition to the polyester and the premix.
- these are the stabilizers, fillers and flame retardants already mentioned, which can be added instead of or not already contained in the premix.
- the amounts of further components are, for example, up to 15% by weight, advantageously from 0.1 to 15% by weight, based on the sum of polyester and premix.
- Other components for example for controlling cell size and cell distribution in the foam, can also be added to the mixing and foaming process. These are, for example, up to 5% by weight, suitably from 0.1 to 5% by weight, based on the sum of polyester and premix, of metal compounds of I. to III. Group in the periodic system, e.g. Sodium carbonate, calcium carbonate, aluminum or magnesium stearate, aluminum or magnesium myristate or sodium terephthalate and the other suitable compounds, such. Talc or titanium dioxide.
- the components can be fed to and mixed in a reactor or mixer, for example a single- or twin-screw extruder or a multi-screw extruder or a tandem unit consisting of two single-screw extruders combined together or combined with one another, a twin-screw extruder and a single-screw extruder.
- the residence time of the components in the reactor or mixer can be for example from 8 to 40 minutes.
- the temperature during the residence time can be from 240 to 320 ° C.
- the blowing agent for foaming is also fed to the reactor or mixer, for example the extruders mentioned.
- Suitable propellants are, for example, easily vaporizable liquids, thermally decomposing substances that release gases or inert gases and mixtures or combinations mentioned Medium.
- the readily volatile liquids include saturated aliphatic or cycloaliphatic hydrocarbons, aromatic hydrocarbons and halogenated hydrocarbons. Examples are butane, pentane, hexane, cyclohexane, ethanol, acetone and HFC 152a.
- As an inert gas CO 2 and nitrogen can be mentioned.
- the blowing agent is usually fed into the extruder after the feed zone, the components.
- the foam body of substantially largely closed-cell foam, which may have, for example, a round, rounded, rectangular or polygonal cross-section.
- the foam body can then be as far as required, according to the use, deformed, cut and / or joined. If foamed bodies are produced, then the foamed bodies can be stacked next to one another and / or one above the other and processed to form foam blocks, in particular homogeneous foam blocks, with mutual release-resistant connection, such as mutual bonding or, in particular, welding.
- the foam bodies can be plate-shaped and stacked. The touching surfaces can be connected to each other over the entire surface, as if welded. This results in foam blocks with welds that run in the extrusion direction. It can, in particular transversely to the extrusion direction, resp. transverse to the welds, individual foam sheets are separated from the foam block.
- the foam body according to the invention has, in particular, the following advantageous features at a bulk density of about 120 kg / m 3 :
- Shear strength according to ISO 1922 for example greater than 1.0 N / mm 2
- - shear modulus (G-modulus) according to ASTM C393, for example greater than 20 N / mm 2 .
- Airex method AM-19 Open cell according to Airex method AM-19 according to ASTM D1056-07, for example, of less than 8% and in particular less than 4%.
- the viscosity number of the resulting foam is determined according to ISO 1628/5 and may for example be more than 150 ml / g, approximately corresponding to an intrinsic viscosity of more than 1.2 dl / g.
- a viscosity number of the resulting foam, determined according to ISO 1628/5 of, for example, more than 160 ml / g, approximately corresponding to an intrinsic viscosity of more than 1.30 dl / g.
- the process according to the invention is also distinguished, for example, by the fact that no gel formation takes place during extrusion.
- the premix is fully miscible with the polyester and no second undesirable phase forms.
- the premix can be produced in devices known per se, the so-called compounding devices, the process being light is controllable.
- the properties of the resulting foam body can also be controlled in a simple manner by the choice of the thermoplastic copolyester elastomer (TPC) and the soft elastomers and hard thermoplastic sequences contained therein.
- Thermoplastic copolyester elastomer (TPC) in the form of granules with a Shore hardness of 55 D is dried for 4 hrs. At 100 0 C by means of hot air.
- TPC Thermoplastic copolyester elastomer
- PMDA pyromellitic dianhydride
- the strands are transferred after cooling in a water bath and drying with an air blower in a granulating device by means of rotating blades in a cylindrical granules.
- the premix thus obtained is after-dried at 70 ° C. for 3 hours.
- Premix Example 2 Thermoplastic copolyester elastomer (TPC) in the form of granules having a Shore hardness of 33 D is dried for 4 hours at 100 ° C. by means of hot air. On a co-rotating twin-screw extruder with a diameter of 27 mm and an L / D ratio of 40, 85% by weight of TPC and 15% by weight of pyromellitic dianhydride (PMDA) are used at a cylinder temperature between 200 and 210 ° C. and a speed of 200 rpm mixed under protective gas atmosphere and discharged in strand form.
- TPC Thermoplastic copolyester elastomer
- PMDA pyromellitic dianhydride
- the strands are transferred after cooling in a water bath and drying with an air blower in a granulating device by means of rotating blades in a cylindrical granules.
- the premix thus obtained is after-dried at 70 ° C. for 3 hours.
- Polyester granules (PET) with an intrinsic viscosity of 0.81 dl / g are dried for 8 hrs. At 150 0 C by means of hot air.
- PET PET granules
- PMDA pyromellitic anhydride
- the strands are transferred after cooling in a water bath and drying with an air blower in a granulating device by means of rotating blades in a cylindrical granules.
- the premix thus obtained is after-dried at 70 ° C. for 3 hours.
- PET granules as starting material having an intrinsic viscosity of 0.81 dl / g are dried for about 5 hours at 170 0 C with dry air and together with 2.7 wt .-% of the premix of Example 1 ( about 11 hours dried with dry air at 60 ° C.) and 1.0% of a nucleating agent (30% talc in PET, dried for about 11 hours with dry air at 60 ° C.) are metered into the first extruder of an extrusion foaming plant with two screw extruders, melted, mixed and foamed with CO 2 .
- the melt temperature at the exit from the extrusion die is 248 ° C, the output approx.
- foam bodies for example approximately cuboidal cross-section, which are cut to plate-shaped foam bodies.
- the plate-shaped foam bodies are stacked and welded to one another at the contact surfaces, forming foam blocks.
- the measured values given in the examples are determined on foam sheets which are separated from the foam blocks transversely to the extrusion direction.
- the viscosity number of the resulting foam is determined according to ISO 1628/5 and is 164.0 ml / g, which corresponds to an intrinsic viscosity of 1.32 dl / g.
- PET granules having an intrinsic viscosity of 0.81 dl / g are dried for about 5 hours at 170 0 C with dry air and together with 2.7 wt .-% of the premix of Example 2 (ca. Dried for 11 hours with dry air at 60 ° C.) and 1.0% of a nucleating agent (30% talc in PET, dried for about 11 hours with dry air at 60 ° C.) are metered into the first extruder of an extrusion foaming plant with two screw extruders, melted. zen, mixed and foamed with CO 2 .
- the melt temperature at the exit from the extrusion die is 249 ° C.
- the output is about 290 kg / h
- the residence time in the extruder is about 17 min.
- the viscosity number of the resulting foam is determined according to ISO 1628/5 and is 165.6 ml / g, which corresponds to an intrinsic viscosity of 1.33 dl / g.
- PET granules having an intrinsic viscosity of 0.81 dl / g are dried for about 5 hours at 170 0 C with dry air and together with 2.3 wt .-% of the premix of Example 2 (ca.
- a nucleating agent (30% talc in PET, dried for about 11 hours with dry air at 60 ° C.) and 10% by weight of a thermoplastic copolyester elastomer (TPC) with a Shore hardness of 33 D (dried for about 12 hours with dry air at 100 ° C.) is metered into the first extruder of an extrusion foaming plant with two screw extruders, melted, mixed and foamed with CO 2 .
- the melt temperature at the exit from the extrusion die is 248 ° C, the output about 270 kg / h, the residence time in the extruder about 18 min.
- the viscosity number of the resulting foam is determined according to ISO 1628/5 and amounts to 162.2 ml / g, which corresponds to an intrinsic viscosity of 1.30 dl / g.
- PET granules having an intrinsic viscosity of 0.81 dl / g are dried for about 5 hours at 170 0 C with dry air and together with 2.7 wt .-% of the premix of the comparative example (ca. 11 hours dried with dry air at 60 ° C.) and 1.0% of a nucleating agent (30% talc in PET, dried for about 11 hours with dry air at 60 ° C.) are metered into the first extruder of an extrusion foaming plant with two screw extruders, melted, mixed and foamed with CO 2 .
- the melt temperature at the outlet from the extrusion tool is 247 0 C.
- the emissions must be reduced to about 200 kg / h in order to realize the required Offenzelltechnikswert of ⁇ 8%.
- the residence time in the extruder thus increases to about 24 minute
- the viscosity number of the resulting foam according to ISO 1628/5 is lower than in Examples 1 and 2, and thus also the correlating intrinsic viscosity (1.27 dl / g), despite the longer residence time at 157.8 ml / g.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Emergency Medicine (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Description
Claims
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011512864A JP5670321B2 (ja) | 2008-06-12 | 2009-06-02 | 発泡ポリエステル類及びその製造方法 |
DK09761408.5T DK2288643T3 (da) | 2008-06-12 | 2009-06-02 | Skumpolyestere og fremgangsmåder til fremstilling heraf |
EP09761408.5A EP2288643B1 (de) | 2008-06-12 | 2009-06-02 | Geschäumte polyester und verfahren zu deren herstellung |
RU2011100164/05A RU2482138C2 (ru) | 2008-06-12 | 2009-06-02 | Вспененные сложные полиэфиры и способы их получения |
CN200980121758.8A CN102056967B (zh) | 2008-06-12 | 2009-06-02 | 发泡的聚酯及其制备方法 |
US12/996,648 US20110082227A1 (en) | 2008-06-12 | 2009-06-02 | Foamed polyesters and methods for their production |
ES09761408.5T ES2439713T3 (es) | 2008-06-12 | 2009-06-02 | Poliésteres espumados y procedimiento para su producción |
CA2727639A CA2727639C (en) | 2008-06-12 | 2009-06-02 | Foamed polyesters and methods for their production |
BRPI0915376A BRPI0915376A2 (pt) | 2008-06-12 | 2009-06-02 | poliésteres espumados e métodos para sua produção |
PL09761408T PL2288643T3 (pl) | 2008-06-12 | 2009-06-02 | Spienione poliestry i sposób ich wytwarzania |
SI200930820T SI2288643T1 (sl) | 2008-06-12 | 2009-06-02 | Penjeni polestri in postopki za njihovo pripravo |
HRP20140054AT HRP20140054T1 (hr) | 2008-06-12 | 2014-01-17 | Pjenasti poliesteri i postupci njihove proizvodnje |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH8922008 | 2008-06-12 | ||
CH00892/08 | 2008-06-12 | ||
CH01943/08A CH700050B1 (de) | 2008-12-11 | 2008-12-11 | Geschäumte Polyester und Verfahren zu deren Herstellung. |
CH01943/08 | 2008-12-11 |
Publications (1)
Publication Number | Publication Date |
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WO2009149845A1 true WO2009149845A1 (de) | 2009-12-17 |
Family
ID=40941894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/003911 WO2009149845A1 (de) | 2008-06-12 | 2009-06-02 | Geschäumte polyester und verfahren zu deren herstellung |
Country Status (13)
Country | Link |
---|---|
US (1) | US20110082227A1 (de) |
EP (1) | EP2288643B1 (de) |
JP (1) | JP5670321B2 (de) |
KR (1) | KR20110036037A (de) |
CN (1) | CN102056967B (de) |
BR (1) | BRPI0915376A2 (de) |
CA (1) | CA2727639C (de) |
DK (1) | DK2288643T3 (de) |
ES (1) | ES2439713T3 (de) |
PL (1) | PL2288643T3 (de) |
PT (1) | PT2288643E (de) |
RU (1) | RU2482138C2 (de) |
WO (1) | WO2009149845A1 (de) |
Cited By (5)
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---|---|---|---|---|
WO2013122492A1 (en) | 2012-02-16 | 2013-08-22 | Politechnika Łódzka | Medical material, the method of its production and use of the medical material |
EP2671911A1 (de) | 2012-06-05 | 2013-12-11 | Armacell Enterprise GmbH | Schaumstoffmaterial mit geringer Wärmeleitfähigkeit und Herstellungsverfahren dafür |
EP2383309B1 (de) | 2010-04-29 | 2016-11-23 | Armacell Enterprise GmbH & Co. KG | Zellulärer polyester aus altpolyesterflocken und verwendung der daraus hergestellten produkte |
EP3970571A4 (de) * | 2019-10-31 | 2023-06-21 | Forpet S.A.R.L. | Wegwerfbecher für heisse und gekühlte getränke |
EP3970570A4 (de) * | 2019-12-27 | 2023-06-21 | Forpet S.A.R.L. | Wegwerfbecher für heisse und gekühlte getränke |
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CN102993421B (zh) * | 2011-09-14 | 2015-07-22 | 中国石油化工股份有限公司 | 可发泡聚对苯二甲酸乙二醇共聚酯的制备方法 |
KR101587187B1 (ko) * | 2014-04-25 | 2016-01-21 | 주식회사 휴비스 | 난연성 폴리에스테르 발포체 및 그 제조방법 |
JP6826982B2 (ja) | 2014-12-22 | 2021-02-10 | ビーエイエスエフ・ソシエタス・エウロパエアBasf Se | 互いに接合されたセグメントから製造されたフォームの繊維による強化 |
ES2820073T3 (es) | 2014-12-22 | 2021-04-19 | Basf Se | Refuerzo de fibra de espumas que contienen agentes expansores |
KR101767989B1 (ko) * | 2015-12-18 | 2017-08-16 | 주식회사 휴비스 | 탄성 발포체 |
CN109320951B (zh) * | 2017-08-04 | 2021-06-08 | 南通德亿新材料有限公司 | 可降解防污热塑性微气囊聚合物弹性体材料及其制备方法 |
CN112074563B (zh) * | 2018-03-12 | 2023-01-20 | 耐克创新有限合伙公司 | 热塑性泡沫物品 |
WO2021207951A1 (zh) * | 2020-04-15 | 2021-10-21 | 南京越升挤出机械有限公司 | 一种用于pet挤出发泡的扩链剂母粒及其制备方法和应用 |
CN112011155B (zh) * | 2020-07-27 | 2023-02-17 | 浙江恒逸石化研究院有限公司 | 一种热塑性共聚酯弹性体/as树脂复合材料发泡母粒及其制备方法和应用 |
CN112062940A (zh) * | 2020-09-11 | 2020-12-11 | 新疆蓝山屯河高端新材料工程技术研究中心(有限公司) | 可发泡聚对苯二甲酸丁二醇共聚酯及其制备方法 |
CN115806728B (zh) * | 2022-12-07 | 2024-02-20 | 江苏越升科技股份有限公司 | 一种用于rPET挤出发泡的双组分扩链剂母粒及其制备方法和应用 |
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- 2009-06-02 PT PT97614085T patent/PT2288643E/pt unknown
- 2009-06-02 JP JP2011512864A patent/JP5670321B2/ja active Active
- 2009-06-02 WO PCT/EP2009/003911 patent/WO2009149845A1/de active Application Filing
- 2009-06-02 KR KR1020117000769A patent/KR20110036037A/ko not_active Application Discontinuation
- 2009-06-02 BR BRPI0915376A patent/BRPI0915376A2/pt not_active Application Discontinuation
- 2009-06-02 US US12/996,648 patent/US20110082227A1/en not_active Abandoned
- 2009-06-02 PL PL09761408T patent/PL2288643T3/pl unknown
- 2009-06-02 ES ES09761408.5T patent/ES2439713T3/es active Active
- 2009-06-02 CA CA2727639A patent/CA2727639C/en active Active
- 2009-06-02 RU RU2011100164/05A patent/RU2482138C2/ru not_active IP Right Cessation
- 2009-06-02 DK DK09761408.5T patent/DK2288643T3/da active
- 2009-06-02 CN CN200980121758.8A patent/CN102056967B/zh active Active
- 2009-06-02 EP EP09761408.5A patent/EP2288643B1/de not_active Revoked
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WO1993012164A1 (en) * | 1991-12-16 | 1993-06-24 | M. & G. Ricerche S.P.A. | Foamed cellular polyester resins and process for their preparation |
WO1996040821A1 (en) * | 1995-06-07 | 1996-12-19 | Amoco Corporation | Concentrate for use in the melt fabrication of polyester |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2383309B1 (de) | 2010-04-29 | 2016-11-23 | Armacell Enterprise GmbH & Co. KG | Zellulärer polyester aus altpolyesterflocken und verwendung der daraus hergestellten produkte |
WO2013122492A1 (en) | 2012-02-16 | 2013-08-22 | Politechnika Łódzka | Medical material, the method of its production and use of the medical material |
EP2671911A1 (de) | 2012-06-05 | 2013-12-11 | Armacell Enterprise GmbH | Schaumstoffmaterial mit geringer Wärmeleitfähigkeit und Herstellungsverfahren dafür |
EP3970571A4 (de) * | 2019-10-31 | 2023-06-21 | Forpet S.A.R.L. | Wegwerfbecher für heisse und gekühlte getränke |
EP3970570A4 (de) * | 2019-12-27 | 2023-06-21 | Forpet S.A.R.L. | Wegwerfbecher für heisse und gekühlte getränke |
Also Published As
Publication number | Publication date |
---|---|
JP2011522932A (ja) | 2011-08-04 |
CA2727639A1 (en) | 2009-12-17 |
CA2727639C (en) | 2014-08-05 |
JP5670321B2 (ja) | 2015-02-18 |
RU2482138C2 (ru) | 2013-05-20 |
PL2288643T3 (pl) | 2014-05-30 |
KR20110036037A (ko) | 2011-04-06 |
EP2288643B1 (de) | 2013-10-30 |
BRPI0915376A2 (pt) | 2015-11-03 |
PT2288643E (pt) | 2014-01-03 |
DK2288643T3 (da) | 2014-01-13 |
ES2439713T3 (es) | 2014-01-24 |
CN102056967A (zh) | 2011-05-11 |
CN102056967B (zh) | 2014-02-05 |
RU2011100164A (ru) | 2012-07-20 |
EP2288643A1 (de) | 2011-03-02 |
US20110082227A1 (en) | 2011-04-07 |
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