DE19929561C2 - Pressure-sensitive, reversibly adhesive self-adhesive and its use for the production of self-adhesive, flat substrates - Google Patents
Pressure-sensitive, reversibly adhesive self-adhesive and its use for the production of self-adhesive, flat substratesInfo
- Publication number
- DE19929561C2 DE19929561C2 DE19929561A DE19929561A DE19929561C2 DE 19929561 C2 DE19929561 C2 DE 19929561C2 DE 19929561 A DE19929561 A DE 19929561A DE 19929561 A DE19929561 A DE 19929561A DE 19929561 C2 DE19929561 C2 DE 19929561C2
- Authority
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- Germany
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- weight
- adhesive
- copolymer
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- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 239000000853 adhesive Substances 0.000 title claims description 38
- 230000001070 adhesive effect Effects 0.000 title claims description 32
- 239000000758 substrate Substances 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 claims description 8
- 239000000178 monomer Substances 0.000 claims description 8
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 claims description 6
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 6
- 239000000123 paper Substances 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 5
- 239000011888 foil Substances 0.000 claims description 5
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 4
- 229920002367 Polyisobutene Polymers 0.000 claims description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 4
- -1 phthalic acid ester Chemical class 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003431 cross linking reagent Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- UIWXSTHGICQLQT-UHFFFAOYSA-N ethenyl propanoate Chemical compound CCC(=O)OC=C UIWXSTHGICQLQT-UHFFFAOYSA-N 0.000 claims description 2
- 125000005397 methacrylic acid ester group Chemical group 0.000 claims description 2
- DNTMQTKDNSEIFO-UHFFFAOYSA-N n-(hydroxymethyl)-2-methylprop-2-enamide Chemical compound CC(=C)C(=O)NCO DNTMQTKDNSEIFO-UHFFFAOYSA-N 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229920002620 polyvinyl fluoride Polymers 0.000 claims description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims 2
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 claims 1
- 235000011037 adipic acid Nutrition 0.000 claims 1
- 239000001361 adipic acid Substances 0.000 claims 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N o-dicarboxybenzene Natural products OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 16
- 239000002390 adhesive tape Substances 0.000 description 6
- 150000002148 esters Chemical class 0.000 description 6
- 229920000915 polyvinyl chloride Polymers 0.000 description 5
- 230000002441 reversible effect Effects 0.000 description 5
- 229920005372 Plexiglas® Polymers 0.000 description 4
- 239000002313 adhesive film Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 239000000969 carrier Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000005357 flat glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 229920002125 Sokalan® Polymers 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 239000012876 carrier material Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004584 polyacrylic acid Substances 0.000 description 2
- ALEBYBVYXQTORU-UHFFFAOYSA-N 6-hydrazinyl-6-oxohexanoic acid Chemical compound NNC(=O)CCCCC(O)=O ALEBYBVYXQTORU-UHFFFAOYSA-N 0.000 description 1
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 239000004821 Contact adhesive Substances 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- 239000004908 Emulsion polymer Substances 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000010130 dispersion processing Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- HRKWOOHVRHBXHJ-UHFFFAOYSA-N hexan-2-yl prop-2-enoate Chemical compound CCCCC(C)OC(=O)C=C HRKWOOHVRHBXHJ-UHFFFAOYSA-N 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/385—Acrylic polymers
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- 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
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08L23/22—Copolymers of isobutene; Butyl rubber; Homopolymers or copolymers of other iso-olefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
- C08L2666/04—Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/28—Non-macromolecular organic substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/08—Homopolymers or copolymers of acrylic acid esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Description
Die Erfindung betrifft druckempfindliche, reversibel haftende Selbstklebemasse, deren Verwendung zur Herstellung von ein- oder beidseitig beschichteten, selbstklebenden, flächigen Substraten und damit hergestellte selbstklebende Folien in Blatt- und Bahnform wie Selbstklebebändern.The invention relates to pressure-sensitive, reversibly adhesive Self-adhesive, the use of which for the production of one or self-adhesive, flat substrates coated on both sides and self-adhesive films made with it in sheet and Web shape like self-adhesive tapes.
Selbstklebebänder sind in Industrie und Handel weit verbreitet und dienen zum Beispiel als Verpackungsbänder, Werbeträger- und Oberflächenschutzfolien, Etiketten, Isolier- und Montagebänder. Sie bestehen im allgemeinen aus Trägern auf Basis von Folien, Papieren, Geweben, Schaumstoffen oder Vliesen mit ein- oder beidseitigen Haftkleberbeschichtungen, die mit einem Abhäsivmate rial abgedeckt sind, das vor Gebrauch des Bandes von der Kleberschicht abgezogen wird. Der Träger wird dann mit der Haftkleberschicht auf die Oberfläche des zu verklebenden Haftgrundes aufgezogen. Self-adhesive tapes are widely used in industry and trade and serve as packaging tapes, advertising media and Surface protection films, labels, insulating and assembly tapes. They generally consist of carriers based on foils, Papers, fabrics, foams or nonwovens with one or double-sided pressure sensitive adhesive coatings, which are coated with an adhesive rial are covered by the tape before use Adhesive layer is peeled off. The carrier is then with the Pressure sensitive adhesive layer on the surface of the to be glued Raised the reason for detention.
Neben den klassischen Natur- und Synthesekautschukhaftklebern, die mit Harzen und Weichmachern in organischen Lösungsmitteln mastiziert, in Wasser dispergiert oder bei entsprechend hohen Temperaturen geschmolzen werden, sind Polyacrylsäureester- Haftkleber bekannt, die in organischen Lösungsmitteln gelöst, aus wäßriger Dispersion oder lösungsmittelfrei mit anschließender Strahlenvernetzung auf Trägermaterialien aufgebracht werden.In addition to the classic natural and synthetic rubber pressure sensitive adhesives, those with resins and plasticizers in organic solvents masticated, dispersed in water or at correspondingly high Temperatures are melted, are polyacrylic acid ester Pressure sensitive adhesive known to be dissolved in organic solvents aqueous dispersion or solvent-free with subsequent Radiation crosslinking can be applied to carrier materials.
In der Patentliteratur ist bereits eine größere Anzahl von Polyacrylsäureester-Haftklebern auf Basis von wäßrigen Disper sionen beschrieben, mit denen Selbstklebebänder hergestellt werden können. Beispiele für die Herstellung von Polyacrylsäure ester-Haftklebern aus Copolymerisaten von Acrylsäureestern, Acrylsäure und anderen Monomeren auf Basis von wäßrigen Disper sionen sind in den DE 36 43 987 A1, DE 38 43 421 A1 und EP 0 141 504 A1 angegeben. Emulsionspolymerisate von n-Butylacrylat, 2-Ethylhexylacrylat, Acrylsäure, Acrylnitril, Vinylacetat und anderen Monomeren sind beispielsweise in den EP 0 130 080 A1, EP- 0 193 295 A1, EP 0 258 753 A2, DE 31 47 007 A1, DE 33 04 695 A1, DE 34 07 279 A1, DE 35 31 601 A1, DE 42 02 071 A1, DE 42 28 436 A1 und DE 195 22 792 A1 beschrieben. Wasserlösliche Haftkleber und Schmelzhaftkleber sind in den DE 197 18 066 A1 und EP 0 578 151 A1 beschrieben. Reversible Haftkleber werden in den DE 38 08 706 A1, EP 0 109 177 A1, EP 0 443 263 A2 und DE 43 42 893 A1 beschrieben.The patent literature already contains a large number of Polyacrylic ester pressure-sensitive adhesives based on aqueous dispersers sions with which self-adhesive tapes are produced can be. Examples of the production of polyacrylic acid ester contact adhesives made from copolymers of acrylic acid esters, Acrylic acid and other monomers based on aqueous disper Sions are in DE 36 43 987 A1, DE 38 43 421 A1 and EP 0 141 504 A1 specified. Emulsion polymers of n-butyl acrylate, 2-ethylhexyl acrylate, acrylic acid, acrylonitrile, vinyl acetate and other monomers are described, for example, in EP 0 130 080 A1, EP 0 193 295 A1, EP 0 258 753 A2, DE 31 47 007 A1, DE 33 04 695 A1, DE 34 07 279 A1, DE 35 31 601 A1, DE 42 02 071 A1, DE 42 28 436 A1 and DE 195 22 792 A1. water-soluble Pressure sensitive adhesives and hot melt pressure sensitive adhesives are described in DE 197 18 066 A1 and EP 0 578 151 A1. Reversible pressure sensitive adhesives are used in the DE 38 08 706 A1, EP 0 109 177 A1, EP 0 443 263 A2 and DE 43 42 893 A1 described.
Im allgemeinen sollen die Haftkleber permanent auf den verklebten Flächen haften. Viele Verarbeiter benötigen jedoch Haftklebebän der, die nur kurzzeitig zum Abdecken, Werben, Kennzeichnen, Schützen, Applizieren, Fixieren oder Montieren verwendet werden. Sie sollen sich nach einer von der Anwendung abhängigen Zeit leicht und rückstandsfrei (reversibel) vom Haftgrund abziehen lassen.In general, the pressure sensitive adhesives should be permanently on the glued Surfaces stick. However, many processors need adhesive tapes those who only have a short time to cover, advertise, label, Protect, apply, fix or assemble. You should look after a time depending on the application Peel off easily and residue-free (reversibly) from the primer to let.
Die oben beschriebenen Haftkleber auf Polyacrylsäureesterbasis haben aber bei ihrer Verwendung für reversible Verklebungen auf Fensterglas, Plexiglas (Acrylglas), Lacken, Kunststoffen und Metallen entweder eine zu geringe Sofortklebkraft oder eine zu hohe Endklebkraft. Polyacrylsäureester-Haftkleber auf Lösemittel- oder Dispersionsbasis ziehen auf den Haftgrund relativ stark auf und weisen nach längerer Verklebungszeit beim Abziehen gegenüber der Sofortklebkraft eine wesentliche höhere Klebkraft auf.The polyacrylic ester-based pressure sensitive adhesives described above but have when used for reversible bonds Window glass, plexiglass (acrylic glass), paints, plastics and Metals either have too little instant tack or too high final tack. Polyacrylic ester pressure sensitive adhesive on solvent or dispersion base pull up relatively strongly on the primer and face after peeling off after a longer period of bonding the instant adhesive strength has a significantly higher adhesive strength.
Aufgabe der vorliegenden Erfindung ist es, eine Klebemasse bereitzustellen, die bei Aufziehen auf Fensterglas, Plexiglas, Kunststoffen, Lacken und Metallen sofort gut haftet und eine nicht zu hohe Endklebkraft erreicht, damit sie sich rückstands frei vom Haftgrund abziehen lassen. Andererseits darf die Klebemasse nicht so geringe Klebkräfte wie handelsübliche Applikationsbänder aufweisen, mit denen selbstklebende Folien schriftzüge auf flächige Materialien transferiert werden, da die mit ihr verklebten Selbstklebefolien über einen begrenzten Zeitraum ausreichend gut haften und sich unter Witterungs einflüssen und erhöhten Temperaturen von etwa 50°C nicht von den Haftgründen ablösen sollen.The object of the present invention is an adhesive to be provided when mounting on window glass, plexiglass, Plastics, paints and metals immediately adhere well and one Final tack not too high, so that it remains behind have it removed freely from the adhesive surface. On the other hand, the Adhesive not as low adhesive strength as commercially available Have application tapes with which self-adhesive films lettering can be transferred to flat materials because the self-adhesive films glued to it over a limited Adhere sufficiently well and under weather conditions influences and elevated temperatures of about 50 ° C not from the To replace reasons for detention.
Die Aufgabe wird erfindungsgemäß durch eine Klebemasse gelöst,
die ein Gemisch folgender Komponenten umfaßt:
According to the invention, the object is achieved by an adhesive which comprises a mixture of the following components:
- a) 20 bis 60 Gewichtsteile eines Copolymerisats aus, bezogen auf das Copolymerisat, 8 bis 95 Gew.-% 2-Ethylhexylacrylat und 5 bis 15 Gew.-% Methylmethacrylat,a) 20 to 60 parts by weight of a copolymer, based on the copolymer, 8 to 95 wt .-% 2-ethylhexyl acrylate and 5 to 15% by weight of methyl methacrylate,
- b) 5 bis 70 Gewichtsteile eines Copolymerisats aus, bezogen auf das Copolymerisat, 5 bis 90 Gew.-% 2-Ethylhexylacrylat, 2 bis 93 Gew.-% n-Butylacrylat und 2 bis 8 Gew.-% Vernetzer auf Basis von N-methylolgruppenhaltigen Amiden,b) 5 to 70 parts by weight of a copolymer, based on the copolymer, 5 to 90% by weight of 2-ethylhexyl acrylate, 2 up to 93% by weight of n-butyl acrylate and 2 to 8% by weight of crosslinking agent based on amides containing N-methylol groups,
- c) 1 bis 35 Gewichtsteile eines Copolymerisats aus, bezogen auf das Copolymerisat, 78 bis 96,5 Gew.-% n-Butylacrylat, 1 bis 10 Gew.-% Acrylnitril, 1 bis 4 Gew.-% Acrylsäure, 1 bis 4 Gew.-% N-Methylolmethacrylsäureamid und 0,5 bis 4 Gew.-% Vernetzer auf Basis von Adipinsäurehydrazid,c) 1 to 35 parts by weight of a copolymer, based on the copolymer, 78 to 96.5% by weight of n-butyl acrylate, 1 to 10% by weight of acrylonitrile, 1 to 4% by weight of acrylic acid, 1 to 4% by weight of N-methylol methacrylic acid amide and 0.5 to 4% by weight Crosslinker based on adipic acid hydrazide,
- d) 1 bis 5 Gewichtsteile Polyisobutylen,d) 1 to 5 parts by weight of polyisobutylene,
- e) 1 bis 10 Gewichtsteile eines Phthalsäureesters mit 4 bis 12 Kohlenstoffatomen in der Alkoholkomponentee) 1 to 10 parts by weight of a phthalic ester with 4 to 12 carbon atoms in the alcohol component
sowie gegebenenfalls übliche Zusatzstoffe, wobei die Ge wichtsteile der Komponenten a) bis e) jeweils auf 100 Gewichts teile des Feststoffgehalts der Klebemasse bezogen sind.and, if appropriate, conventional additives, the Ge important parts of components a) to e) each to 100 weights parts of the solids content of the adhesive are related.
Die Haftkleberkomponenten werden nach den üblichen Verfahren der Patentliteratur hergestellt.The pressure sensitive adhesive components are manufactured according to the usual procedures Patent literature produced.
Vorzugsweise beträgt der Anteil an von 2-Hexylacrylat abgeleite ten Einheiten im Copolymerisat der Komponente b), bezogen auf das Copolymerisat, 10 bis 50 Gew.-%.The proportion of derived from 2-hexyl acrylate is preferably ten units in the copolymer of component b), based on the Copolymer, 10 to 50 wt .-%.
Das Polyisobutylen gemäß Komponente d) ist vorzugsweise ein niedermolekulares Polyisobutylen mit einem Molekulargewicht (Zahlenmittel) von 1000 bis 40 000.The polyisobutylene according to component d) is preferably a low molecular weight polyisobutylene with a molecular weight (Number average) from 1000 to 40 000.
In die Copolymerisate der Mischungskomponenten a), b) und/oder c) können weitere Monomere wie Methacrylsäureester, Methacryl nitril, Vinylacetat, Styrol, Vinylpropionat und/oder Vinyliden chlorid, einpolymerisiert sein, wobei jede der Komponenten, insgesamt bis zu 30 Gew.-%, vorzugsweise 1 bis 30 Gew.-%, von diesen weiteren Monomeren abgeleitete Einheiten enthalten kann.In the copolymers of the mixture components a), b) and / or c) can further monomers such as methacrylic acid ester, methacrylic nitrile, vinyl acetate, styrene, vinyl propionate and / or vinylidene chloride, polymerized in, each of the components, in total up to 30% by weight, preferably 1 to 30% by weight, of may contain units derived from these further monomers.
Die Komponenten a), b) und c) weisen vorzugsweise K-Werte im Bereich von 90 bis 120 nach Fikentscher (gemessen nach DIN 51562 in Tetrahydrofuran) auf. Sie können die in der Literatur üblichen Emulgatoren, beispielsweise anionische Emulgatoren enthalten, wie sie in Houben-Weyl, Methoden der organischen Chemie, Band 14/1, Makromolekulare Stoffe, Georg-Thieme-Verlag, Stuttgart 1972, Seiten 192-208 beschrieben sind.Components a), b) and c) preferably have K values in the Range from 90 to 120 according to Fikentscher (measured according to DIN 51562 in tetrahydrofuran). You can use the usual ones in literature Contain emulsifiers, for example anionic emulsifiers, such as she in Houben-Weyl, Methods of Organic Chemistry, Volume 14/1, Macromolecular substances, Georg-Thieme-Verlag, Stuttgart 1972, Pages 192-208 are described.
Das erfindungsgemäße Gemisch liegt vorzugsweise als wäßrige Dispersion vor, die insbesondere mit Ammoniakwasser auf einen pH- Wert von 7 bis 8, vorzugsweise 7 bis 7,5 eingestellt ist. Um eine einwandfreie Beschichtung mit einer guten Filmbildung zu erzielen, können der Dispersion Verarbeitungshilfsmittel wie Verdicker, Verlauf- und Netzmittel sowie Entschäumer in üblichen Mengen zugegeben werden.The mixture according to the invention is preferably in the form of an aqueous one Dispersion, which in particular with ammonia water to a pH Value of 7 to 8, preferably 7 to 7.5 is set. To one flawless coating with good film formation too can achieve the dispersion processing aids such as Thickeners, leveling agents and wetting agents as well as defoamers in usual Amounts are added.
Die Dispersion wird auf ein flächiges, dünnes Material wie zum Beispiel ein silikonisiertes Papier oder eine silikonisierte Folie so aufgetragen, daß sich nach Verdampfen des Wassers im Trockenkanal ein Haftkleberfilm von 5 bis 60 g/m2, vorzugsweise 10 bis 40 g/m2 bildet. Der getrocknete Haftkleberfilm wird dann auf flächige Materialien wie zum Beispiel Folien kaschiert. Die Erfindung betrifft ferner die Verwendung der erfindungsgemäßen Klebemasse zur Herstellung von ein- oder beidseitig beschichte ten, selbstklebenden, flächigen Substraten, insbesondere Selbstklebebändern. Als Trägermaterialien für solche Selbst klebebänder eignen sich beispielsweise Träger auf Basis von Folien, Papieren, Geweben, Schaumstoffen oder Vliesen, ins besondere Folien auf Basis von Weich-PVC, Hart-PVC, Polyester, Polycarbonat, Polypropylen oder Polyvinylfluorid. Vorzugsweise werden Folien in Stärken von 30 bis 120, insbesondere 40 bis 100 µm verwendet.The dispersion is applied to a flat, thin material such as, for example, siliconized paper or a siliconized film in such a way that a pressure-sensitive adhesive film of 5 to 60 g / m 2 , preferably 10 to 40 g / m 2, forms after evaporation of the water in the drying tunnel , The dried pressure sensitive adhesive film is then laminated onto flat materials such as foils. The invention further relates to the use of the adhesive according to the invention for the production of self-adhesive flat substrates coated on one or both sides, in particular self-adhesive tapes. Suitable carrier materials for such self-adhesive tapes are, for example, carriers based on foils, papers, fabrics, foams or nonwovens, in particular foils based on soft PVC, hard PVC, polyester, polycarbonate, polypropylene or polyvinyl fluoride. Films with a thickness of 30 to 120, in particular 40 to 100 μm are preferably used.
Die auf Andruck haftende erfindungsgemäße Klebemasse besitzt auf Fenster- und Acrylglas, Kunststoffen sowie Metallen eine gute Sofortklebkraft und läßt sich nach der Anwendung problemlos wieder abziehen, ohne daß der Kleber umspult. Die Verklebungen können sich über einen Zeitraum von einigen Tagen bis zu etwa 2 Jahren erstrecken. Bei speziellen technischen Anwendungen sind mit der erfindungsgemäßen Klebemasse kurzzeitig reversible Haftungen bis ca. 120°C möglich, wenn die Trägerfolie wärmebe ständig ist und keine migrierenden Weichmacher enthält.The adhesive of the invention adhering to pressure has Window and acrylic glass, plastics and metals are good Instant adhesive power and can be easily applied after use pull off again without the adhesive rewinding. The bonds can spread over a period of a few days up to about Extend 2 years. For special technical applications briefly reversible with the adhesive of the invention Adhesions up to approx. 120 ° C are possible if the carrier film is warm is permanent and contains no migrating plasticizers.
Der reversible Kleber ist auf Weich-PVC-Trägern gegenüber der Migration von Monomerweichmachern so beständig, daß bei Lagerung bis 50°C eine den Anforderungen für reversible Haftung ent sprechende Adhäsionskraft bestehen bleibt. Die erfindungsgemäße Klebemasse weist auch auf Acrylglas (Plexiglas) oder Polycarbo natplatten eine gute Adhäsion auf, haftet aber nach einer Freibewitterung oder Wärmeeinwirkung bis 50°C nicht so stark, daß die Reversibilität nicht mehr vorhanden ist.The reversible adhesive is on soft PVC carriers compared to the Migration of monomer plasticizers so stable that during storage up to 50 ° C meet the requirements for reversible adhesion speaking adhesive strength remains. The invention Adhesive also points to acrylic glass (plexiglass) or polycarbo nat plates has good adhesion, but adheres after one Outdoor weathering or exposure to heat up to 50 ° C is not as strong, that the reversibility is no longer present.
Im folgenden wird die Erfindung anhand von Beispielen näher
erläutert:
Es wurden anhand der nachstehenden Tabelle I erfindungsgemäße
Haftkleber gemäß den angegebenen Rezepturen hergestellt. Die
Gewichtsprozente beziehen sich auf den Feststoffgehalt, d. h.
Wasseranteile sind nicht enthalten.The invention is explained in more detail below with the aid of examples:
Pressure-sensitive adhesives according to the invention were produced in accordance with the recipes given using Table I below. The weight percentages relate to the solids content, ie water components are not included.
Die Dispersionen wurden auf einem einseitig silikonisierten Papier (65 g/m2) so aufgetragen, daß nach dem Trocknen Klebefilme mit ca. 22 g/m2 Haftkleber entstanden sind. Die Klebstoff beschichtungen wurden auf eine ca. 70 µm starke, transparente Weich-PVC-Folie kaschiert. Die Klebkräfte der beschichteten Weich-PVC-Folie wurden sofort, nach 24 Stunden, nach 3 Tagen bei 50°C und nach 7 Tagen bei 50°C Verklebungszeit auf den Haftgründen Stahl, Glas, Plexiglas, Autolackblech (Acryllack), Aluminium und Polystyrol ermittelt und sind in der nachstehenden Tabelle II aufgeführt. Die Messungen erfolgten gemäß Afera-Norm 4001 bei 23 ± 2°C und 50 ± 6% relativer Luftfeuchtigkeit. The dispersions were applied to one-sided siliconized paper (65 g / m 2 ) in such a way that adhesive films with approx. 22 g / m 2 pressure sensitive adhesives were formed after drying. The adhesive coatings were laminated to an approx. 70 µm thick, transparent soft PVC film. The adhesive strength of the coated soft PVC film was determined immediately, after 24 hours, after 3 days at 50 ° C and after 7 days at 50 ° C bonding time on the steel, glass, plexiglass, car paint sheet (acrylic paint), aluminum and polystyrene and are listed in Table II below. The measurements were carried out in accordance with Afera standard 4001 at 23 ± 2 ° C and 50 ± 6% relative humidity.
Claims (13)
- a) 20 bis 60 Gewichtsteile eines Copolymerisats aus, bezogen auf das Copolymerisat, 8 bis 95 Gew.-% 2-Ethyl hexylacrylat und 5 bis 15 Gew.-% Methylmethacrylat,
- b) 5 bis 70 Gewichtsteile eines Copolymerisats aus, bezogen auf das Copolymerisat, 5 bis 90 Gew.-% 2- Ethylhexylacrylat, 2 bis 93 Gew.-% n-Butylacrylat und 2 bis 8 Gew.-% Vernetzer auf Basis von N-methylol gruppenhaltigen Amiden,
- c) 1 bis 35 Gewichtsteile eines Copolymerisats aus, bezogen auf das Copolymerisat, 78 bis 96,5 Gew.-% n-Bu tylacrylat, 1 bis 10 Gew.-% Acrylnitril, 1 bis 4 Gew.-% Acrylsäure, 1 bis 4 Gew.-% N-Methylolmethacrylsäureamid und 0,5 bis 4 Gew.-% Vernetzer auf Basis von Adipinsäu rehydrazid,
- d) 1 bis 5 Gewichtsteile Polyisobutylen,
- e) 1 bis 10 Gewichtsteile eines Phthalsäureesters mit 4 bis 12 Kohlenstoffatomen in der Alkoholkomponente,
- a) 20 to 60 parts by weight of a copolymer of, based on the copolymer, 8 to 95% by weight of 2-ethyl hexyl acrylate and 5 to 15% by weight of methyl methacrylate,
- b) 5 to 70 parts by weight of a copolymer of, based on the copolymer, 5 to 90% by weight of 2-ethylhexyl acrylate, 2 to 93% by weight of n-butyl acrylate and 2 to 8% by weight of crosslinking agent based on N- methylol group-containing amides,
- c) 1 to 35 parts by weight of a copolymer, based on the copolymer, of 78 to 96.5% by weight of n-butyl acrylate, 1 to 10% by weight of acrylonitrile, 1 to 4% by weight of acrylic acid, 1 to 4 % By weight of N-methylol methacrylic acid amide and 0.5 to 4% by weight of crosslinking agent based on adipic acid rehydrazide,
- d) 1 to 5 parts by weight of polyisobutylene,
- e) 1 to 10 parts by weight of a phthalic acid ester with 4 to 12 carbon atoms in the alcohol component,
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DE102006044718A1 (en) * | 2006-09-20 | 2008-04-03 | Tesa Ag | adhesive |
EP2510067B1 (en) * | 2009-12-09 | 2013-10-02 | Basf Se | Pressure-sensitive adhesive for pvc films |
KR20170089665A (en) * | 2016-01-27 | 2017-08-04 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | Pressure-sensitive adhesive compositions |
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DE19522792A1 (en) * | 1995-06-14 | 1996-12-19 | Hans Neschen Gmbh & Co Kg I K | Correctable adhesive tape, for surface protection and laminating |
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