Abstract: A surface covering is provided and includes an upper section of laminated polymeric layers and an acoustical section for dissipating sound waves.

Abstract: The present invention is directed to a powder coating composition including a hydroxy-functional polymer, a carbodiimide crosslinker, and an organometallic catalyst. The present invention is also directed to a substrate at least partially coated with the powder coating composition. The present invention is also directed to a method of applying a coating composition to a substrate including: applying the powder coating composition to a substrate and heating the powder coating composition to form a coating over the substrate.

Abstract: A moisture curable, non-bitumen based and non-asphaltic based adhesive includes an extender, a compatibilizer, and a polymer, wherein the polymer includes reactive silyl groups.

Abstract: A resin system containing: (i) a thermosetting resin precursor component comprising one or more multi-functional epoxy resin precursor(s) having a functionality of at least three, preferably wherein said precursor(s) are selected from a tri-functional epoxy resin precursor and/or a tetra-functional epoxy resin precursor; (ii) a thermoplastic polyamide particle component wherein the polyamide particles have a melting temperature TPA; and (iii) one or more curing agent(s), wherein the resin precursor component, the thermoplastic particle and the curing agent(s) are selected such that gelation of the epoxy matrix during the cure cycle of the resin system occurs at a gelation temperature TGEL which is at or below TPA.

Abstract: The present inventions concerns compositions for producing thermoset polyurethanes, comprising polyisocyanates and polyols selected from a list consisting of allicyclic, aromatic compounds and branched polyesters. The films obtained from these compositions exhibit a high transparency, high thermal stability and good chemical resistance, and a method to produce the same. The said polyurethane films can be widely used in electronics industry where high transparency, high thermal resistance and good chemical resistance are the main requirements. Particularly, these films can be used as the substrates for conductive coatings and barrier coatings. These functionally coated films are particularly useful in applications such as touch panels or photo-voltaic cells.

Abstract: A composition that includes a fuel and a perfluoropolyether (PFPE) is disclosed. The composition may be used as a flare composition in a countermeasure device. Countermeasure devices including the flare composition are also disclosed, as are methods of forming grains of the countermeasure device.

Abstract: A proppant includes a particle present in an amount of from 90 to 99.5 percent by weight and a polymeric coating disposed about the particle and present in an amount of from 0.5 to 10 percent by weight, based on the total weight of the proppant. The polymeric coating is formed from a curable composition comprising an isocyanate, an acrylate, and a polyol. A method of forming the proppant includes the steps of combining the isocyanate, the acrylate, and the polyol to form the curable composition, coating the particle with the curable composition, and curing the curable composition to form the polymeric coating.

Abstract: Adhesive bonding of eloxated aluminum to plastic, with a product having at least one layer of a latently reactive adhesive film which has a thermoplastic component having a melting point T(melting) where 35° C.?T(melting)?90° C. and contains functional groups that can react with isocyanate and an isocyanate-containing component dispersed in particulate form in the thermoplastic and is essentially deactivated in the region of the particle surface, the particles having a start temperature T(start) where 40° C.?T(start)?100° C. and where T(start)?T(melting).

Abstract: Matte-appearance chemical-agent-resistant powder coating compositions are described. In embodiments, powder coating compositions comprise a resin component, a polyisocyanate-containing uretdione cross-linking agent, catalyst, and flattening agent. The resin component may comprise a hydroxyl-containing resin and a hydroxyl-containing halogenated copolymer resin. Catalyzed cross-linking of the uretdione isocyanate groups and resins of the resin component during curing preferably yields a finished-form film with low levels of gloss and sheen and chemical-agent resistance.

Abstract: A selfbonding enamel containing resins which are capable of crosslinking with one another, comprising (A) 5 to 95 wt % of at least one resin with nucleophilic groups selected from the group consisting of OH, NHR, SH, C(O)NHR, carboxylate, CH-acidic groups and Carbanions, (B) 0 to 70 wt % of at least one amide group-containing resin and (C) 0 to 30 wt % of at least one polyurethane resin, (D) 0 to 30 wt % of at least one epoxy resin, (E) 5 to 95 wt % of at least one organic solvent, wherein the resins of either component (A) and/or, if component (B) is contained in the composition, component (B) contain ?-carboxy-?-oxocycloalkyl carboxylic acid amide groups the coatings of the selfbonding enamel have excellent adhesion to electrically conductive wires high sticking properties and high re-softening temperatures.

Abstract: The present invention provides a non-aqueous composition containing a particulate solid, an organic medium and a polyurethane dispersant having an essentially linear backbone and laterally attached solvent-solubilizing side chains of a polyester, a polyether, a polyacrylate or a polyolefin including mixtures of such side chains.

Abstract: A method for producing a (meth)acrylic polymer particle comprises polymerizing a monomer (X) having a (meth)acryloyl group to produce a polymer particle, and polymerizing a monomer mixture (Y) in the presence of the polymer particle, in which the monomer (X) is 90 to 99.9% by mass and the monomer mixture (Y) is 0.01 to 10% by mass in terms of the ratio among monomer raw materials to be supplied for polymerization; and the monomer mixture (Y) comprises 1 to 80% by mol of a monomer (a) having a basic nitrogen atom or having a blocked isocyanate as a functional group, 5 to 80% by mol of a (meth)acrylate monomer (b) of at least one alcohol selected from the group consisting of an aliphatic alcohol having 2 or more carbon atoms, an aromatic alcohol, and a cyclic alkyl alcohol, and 0 to 94% by mol of a monomer (c) other than the monomer (a) and the monomer (b).

Abstract: The present invention relates to a process for the preparation of particularly reactive and low-viscosity reaction products of polyisocyanates which contain activated ethylenically unsaturated groups which react by polymerization under the action of actinic radiation, and the use of these reaction products in coating compositions, and particularly scratch-resistant coatings obtainable therefrom.

Abstract: Non-fluorinated blocked polyurethanes are described as extenders and, particularly as textile auxiliaries, for use with fluorochemical polymers in treating substrates, for example fibrous substrates, such as textile fabrics or yarns. The polyurethane is prepared by reacting a polyisocyanate, a blocking agent, and a non-fluorinated isocyanate reactive compound having an average alkyl chain length of 24 to 50 carbon atoms.

Abstract: A radically curable polyurethane composite for dental restorations, including provisional restorations, includes polyurethane dimethacrylate prepolymers that have at least one flexible unit within a polyurethane dimethacrylate backbone, and one or more dimethacrylate monomers. Composite materials made with polyurethane dimethacrylate prepolymers of the invention exhibit superior and optimal properties of flexural strength and deflection-at-break relative to conventional dental resin composites. Composite materials of the invention also provide improved melt-resistance in response to the heat of grinding or finishing, thereby improving the fit of restorations made from the composite and preserving the finishing instruments. Methods of treating a tooth using the radically curable polyurethane composite and methods of making the polyurethane dimethacrylate prepolymers with flexible units is also provided. A kit including the radically curable polyurethane composite is also described.

Abstract: The present invention relates to golf balls comprising a crosslinked ionomer composition formed by the reaction of either one or more ionomers, or an ionomer precursor composition, with one or more crosslinking agents including polyisocyanates, blocked polyisocyanates, polyurethane prepolymers, blocked polyurethane prepolymers, polyurea prepolymers, blocked polyurea prepolymers, polyamines, blocked polyamines and dicyanodiamides. The resulting modified ionomer compositions exhibit increased tensile strength and a decrease in tensile elongation as compared to the uncrosslinked ionomer analogs while maintaining Shore D hardness.

Abstract: There is provided a novel composition for forming a gate insulating film taking into consideration also electrical characteristics after other processes such as wiring by irradiation with an ultraviolet ray and the like during the production of an organic transistor using a gate insulating film. A composition for forming a gate insulating film for a thin-film transistor comprising: a component (i): an oligomer compound or a polymer compound containing a repeating unit having a structure in which a nitrogen atom of a triazine-trione ring is bonded to a nitrogen atom of another triazine-trione ring through a hydroxyalkylene group; and a component (ii): a compound having two or more blocked isocyanate groups in one molecule thereof.

Abstract: A thermosetting polymer material capable of being used in powder coatings. The thermosetting polymer material includes at least one hydroxyl functional aliphatic polycarbonates that is formulated and crosslinked with isocyanates to yield a thermoset organic coating material. These materials provide improved weatherability as compared to prior art powder coating materials while also being less expensive than prior art materials utilizing fluorinated polymers.

Abstract: Disclosed is a two-pack fluorine coating composition which comprises a combination of: a base component comprising a fluorinated copolymer having a hydroxyl group which can be dissolved in a low-polar weak solvent even at a low temperature and; a curing agent comprising a polyisocyanate compound.

Abstract: A fast hardening clear coating composition for repairing a clear coat/color coat finish or a pigmented mono-coat of a vehicle comprising a film forming binder and an organic liquid carrier, where the binder contains a hydroxyl polymer component comprising (A) hydroxyl-containing acrylic polymer, (B) at least one hydroxyl-terminated component selected from the group consisting of (1) an organic diol having the formula where R1 and R2 are individually selected from the group of hydrogen and an alkyl group having 1, 3-5 carbon atoms and (2) a hydroxyl terminated reaction product of trimethylol propane and a lactone; (C) an organic polyisocyanate crosslinking component, at least portion of which comprises a trimer of isophorone diisocyanate or hexamethylene diisocyanate and the composition further contains, a curing catalyst, of a dialkyl tin aliphatic carboxylate, a tertiary aliphatic mono or diamine, an aliphatic carboxylic acid, and optionally, a zinc or calcium organic acid salt in an effective amount suc

Abstract: The present invention provides a composition comprising an amphiphile and an active ingredient whose solubility in water at 20° C. is not more than 10 g/L, wherein the amphiphile comprises a dendritic polyurea which is joined to at least one linear or comb-type polymer, and the joining is effected via a difunctional linker, if the repeat units of the linear polymer are composed of polymerized alkylene oxide. The invention also relates to an amphiphile comprising a dendritic polyurea and a process for preparing the amphiphile.

Abstract: The present invention provides a release agent containing at least a nonreactive polyolefin, an aromatic isocyanate having 3 or more isocyanate groups in one molecule and a polyolefin polyol, wherein the content of the nonreactive polyolefin is not less than 80 wt %, and not less than 90 wt % of the nonreactive polyolefin has tensile elasticity at 23° C. of not more than 10 MPa and tensile fracture stress at 23° C. of not more than 8 MPa.

Abstract: This invention is directed to a coating composition comprising an coating composition comprising a crosslinkable composition and a crosslinking composition. The crosslinkable composition comprises an acrylic polyol wherein the acrylic polyol comprises at least 40 percent by weight of at least one linear or branched C8 or higher alkyl acrylate monomer and at least one polyester extended acrylate monomer. The coating composition is suitable for use as a basecoat and can be used in a 3-wet paint process that eliminates the primer curing booth.

Abstract: The invention relates to compositions based on 2,5-diisocyanato-1,4:3,6-dianhydro-2,5-dideoxy-D-manitol (I), 2,5-diisocyanato-1,4:3,6-dianhydro-2,5-dideoxy-D-glucitol (II), and/or 2,5-diisocyanato-1,4:3,6-dianhydro-2,5-dideoxy-L-iditol (III), alone or in any mixtures.

Abstract: Presently disclosed embodiments concern an isocyanate-modified composition which includes A) from about 65 to about 99 weight % (based on the total weight of the isocyanate-modified composition) of a base polymer having either hydroxyl groups or amine groups or mixtures thereof, and B) from about 1 to about 35 weight % (based on the total weight of the isocyanate-modified composition) of a blocked isocyanate. The presently disclosed embodiments also include a golf ball made from the isocyanate-modified composition, and a method of making a golf ball using the isocyanate-modified composition, such as by injection molding.

Abstract: Core-shell rubbers are incorporated into epoxy adhesives. The adhesives are structural type adhesives that contain an epoxy resin and a toughener, and may contain a liquid rubber in addition to the core-shell rubber. The adhesives have good modulus and tensile strength, which are obtained without loss of elongation and adhesive properties.

Abstract: There is provided a novel composition for forming a gate insulating film taking into consideration also electrical characteristics after other processes such as wiring by irradiation with an ultraviolet ray and the like during the production of an organic transistor using a gate insulating film. A composition for forming a gate insulating film for a thin-film transistor comprising: a component (i): an oligomer compound or a polymer compound containing a repeating unit having a structure in which a nitrogen atom of a triazine-trione ring is bonded to a nitrogen atom of another triazine-trione ring through a hydroxyalkylene group; and a component (ii): a compound having two or more blocked isocyanate groups in one molecule thereof.

Abstract: The present invention provides an aqueous metallic coating composition comprising: (A) an aqueous film-forming resin; (B) a curing agent; (C) a phosphoric acid group-containing resin having an acid value of 10 to 200 mg KOH/g and obtained by copolymerizing a phosphoric acid group-containing polymerizable unsaturated monomer (a) represented by formula (1) with other polymerizable unsaturated monomer(s) (b); (D) a nitrogen-containing compound represented by formula (2); and (E) a metallic pigment. The present invention further provides a method for forming a multilayer coating film using the aqueous metallic coating composition.

Abstract: The present invention provides an aqueous intermediate coating composition comprising: (A) a resin containing hydroxyl and carboxyl groups with a hydroxyl value of 100 to 200 mg KOH/g and an acid value of 20 to 50 mg KOH/g; (B) at least one curing agent selected from the group consisting of melamine resins and blocked polyisocyanate compounds; and (C) flat pigment particles; the molecular weight distribution of a curable resin component comprising component (A) and component (B) including from 30 to 50% by weight of a component with a molecular weight of less than 1,000, and 10% by weight or less of a component with a molecular weight exceeding 100,000; the proportion of component (C) being from 2 to 15 parts by weight based on 100 parts by weight of the resin component; and when the intermediate coating composition is applied to an undercoating film, pre-dried at 100° C. for 30 minutes and then heat-cured at 145° C.

Abstract: A water based adhesive or bonding agent, which exhibits highly favorable bonding traits, in conjunction with superior material handling aspects. Additionally, the water based adhesive agent endeavors to find use where the handling of solvent based adhesives becomes a hazard. Further, a method for preparation of the water based adhesive agent and a method for usage of the water based bonding system within the shoe manufacturing industry.

Abstract: Compositions are described comprising a) polyoxymethylene, b) thermoplastic elastomer having active hydrogen atoms, c) polyoxymethylene which differs from component a) and contains active hydrogen atoms, d) reagent for covalent coupling of components b) and c), and e) if appropriate, another impact modifier, which differs from component b). The compositions feature improved toughness and can be used for production of moldings.

Abstract: The present invention is directed to a method of forming a golf ball that contains an interpenetrating polymer network, or IPN, which includes at least two polymeric systems, in one or more of the layers. The first polymeric system may include a polyurethane-based or polyurea-based system having blocked isocyanate groups and the second polymeric system may include an epoxy-based or acrylic-based system, wherein the two systems are polymerized or cured simultaneously or sequentially to form an IPN.

Abstract: A fast hardening clear coating composition for repairing a clear coat/color coat finish or a pigmented mono-coat of a vehicle comprising a film forming binder and an organic liquid carrier, where the binder contains a hydroxyl polymer component comprising (A) hydroxyl-containing acrylic polymer, (B) at least one hydroxyl-terminated component selected from the group consisting of (1) an organic diol having the formula where R1 and R2 are individually selected from the group of hydrogen and an alkyl group having 1, 3-5 carbon atoms and (2) a hydroxyl terminated reaction product of trimethylol propane and a lactone; (C) an organic polyisocyanate crosslinking component, at least portion of which comprises a trimer of isophorone diisocyanate or hexamethylene diisocyanate and the composition further contains, a curing catalyst, of a dialkyl tin aliphatic carboxylate, a tertiary aliphatic mono or diamine, an aliphatic carboxylic acid, and optionally, a zinc or calcium organic acid salt in an effective amount s

Abstract: The present invention is directed to a method of forming a golf ball that contains an interpenetrating polymer network, or IPN, which includes at least two polymeric systems, in one or more of the layers. The first polymeric system may include a polyurethane-based or polyurea-based system having blocked isocyanate groups and the second polymeric system may include an epoxy-based or acrylic-based system, wherein the two systems are polymerized or cured simultaneously or sequentially to form an IPN.

Abstract: A copolymer and a process of making the copolymer are disclosed. The copolymer is produced from reacting a glycidyl ester and/or ether with a polyol comprising a functionality of at least 2 wherein at least 50% by weight of the copolymer comprises a minimum of 3n+X repeating units, wherein n is a monomer unit and X is a monomer unit and/or other reactant. The copolymer may also include less than 50% of the polymeric units having the same molecular weight. The present invention is further directed to processes for preparing the copolymer and to coating compositions employing the copolymer.

Abstract: Modified epoxy resins comprising the reaction product of a cycloaliphatic, polycyclic and/or aromatic biomass derived compound and an epoxy resin are disclosed. Aqueous dispersions and coatings comprising these reaction products are also disclosed.

Abstract: A binder composition for polyester type films showing superior transparency, film hardness and solvent resistance as well as superior adhesion to polyester type films and an optical film using the composition are provided. The binder composition for polyester type films of the present invention contains a high-molecular weight polymethyl methacrylate (a), an acrylic polyol (b), an isocyanate type curing agent (c), and a polyester resin (d). The optical film of the present invention is an optical film including a polyester type film and a functional layer provided on the polyester type film, the functional layer containing a high-molecular weight polymethyl methacrylate (a), an acrylic polyol (b), an isocyanate type curing agent (c), and a polyester resin (d).

Abstract: This invention relates to a method for forming a multi-layer coating on a vehicle body, comprised of applying primer coating, base coating, and clear coat layers in a wet-on-wet-on-wet manner, and simultaneously curing the applied three layers together in a single baking step. The primer layer comprises a film-forming binder (a) a caprolactone-modified linear acrylic polymer; and (b) an aminoplast resin crosslinking agent, wherein the composition is essentially free of crosslinked nonaqueous dispersion resin particles or crosslinked microgel resin particles or both. The resulting multi-layered coating film has excellent aesthetic appearance, strike-in resistance, chipping resistance, sag resistance, and film build even when formed in a three wet layered application method.

Abstract: The invention relates to a high gloss car wash-resistant coating composition comprising a hydroxyl-functional binder and a cross-linker reactive with the hydroxyl groups of the binder and a method to prepare such a car wash-resistant coating. The invention further relates to the use of said coating composition, as a pigment-free top coat or a clear coat, in the finishing and refinishing of articles, for example motorcycles, cars, trains, buses, trucks, and aeroplanes. The coating composition after curing forms a coating having an initial gloss of at least 81 GU and a loss of gloss (LoG) of less than 0.18, the loss of gloss being determined by the formula (I): LoG=A+B·E?·(X)?1·10(C·?Tg)+D·(E?)?0.5; wherein A=0.0132, B=1.0197, C=0.0113, and D=0.0566, E? reflects the tensile storage modulus at 40° C. in GPa, ?Tg the width of the glass transition temperature in ° C., and X the cross-link density parameter in kPA/K all three parameters determined in a DMTA test at 11 Hz and a heating rate of 5° C./min.

Abstract: The invention relates to high-reactivity polyurethane compositions. The invention further relates to low temperature curable polyurethane compositions which contain uretdione groups, particularly useful for polyurethane powder coating compositions and adhesive compositions, and to processes for preparing and using the same.

Abstract: The present invention relates to liquid stable thiol-acrylate and thiol-vinyl ether compositions. More particularly, in accordance with some embodiments, the compositions may include a (meth)acrylate, a thiol component, an organic acid stabilizer, and a curing initiator. In other embodiments, the compositions may include a curable component selected from a (meth)acrylate, vinyl ether and/or alkenyl ether, a reactive diluent having vinyl ether and acrylate functionality, a thiol component and a stabilizer selected from an organic acid, a hemiacetal ester derivative of an organic acid and/or a phenol acetal.

Abstract: The present invention relates to a process for preparing low-viscosity, allophanate-containing and NCO-free polyurethane prepolymers curable by actinic radiation, and to the products obtainable by this process. The prepolymers have residual monomer contents of less than 0.5% by weight and an NCO content of less than 1% by weight, and are prepared by a process in which A) diisocyanates, B) hydroxy-functional compounds containing groups which react with ethylenically unsaturated compounds on exposure to actinic radiation, and C) polyester, polyether or polycarbonate polyols having a functionality of at least 1.

Abstract: A copolymer composition comprising monomers copolymerized in the following percentages by weight: (a) from about 20% to about 95% of a monomer, or mixture of monomers, of formula (I): CnF2n+1(CH2)x[(CF2CF2)y(CH2CH2)z]m-L-C(O)—C(R)?CH2??(I) wherein R is H, Cl, F or CH3, L is O, S, NH, S—(CH2)rO, S—(CH2)rNH, OC(O)NH—CH2CH2O, NHC(O)NHCH2CH2O, S—(CH2)rOC(O)NHCH2CH2O, or S(CH2)rNHC(O)NHCH2CH2O, and (b) from about 5% to about 80% of at least one of: (i) an alkyl (meth)acrylate monomer having a linear, branched or cyclic alkyl group of from about 6 to about 18 carbons; or (II) a monomer of formula (II) (R2)2N—R3—O—C(O)—C(R)?CH2??(II) wherein R is H, Cl, F or CH3, each R2 is independently a C1 to C4 alkyl; and R3 is a divalent linear or branched C1 to C4 alkylene; and wherein the nitrogen is from about 40% to 100% salinized; or (iii) a mixture thereof.

Abstract: A process for preparing derivatized poly(4-hydroxystryrene) having a novolak type structure which comprises the steps of (i) supplying a solution of methanol containing 4-hydroxyphenylmethylcarbinol, (ii) subjecting said solution to an acid catalyzed displacement reaction for a sufficient period of time and under suitable conditions of temperature and pressure to convert substantially all of said carbinol to 4-hydroxyphenylmethylcarbinol methyl ether in solution, (iii) polymerizing said ether containing solution in the presence of a suitable acid catalyst for a sufficient period of time and under suitable conditions of temperature and pressure to form a novolak type polymer.

Abstract: A process for improving the intercoat adhesion in a multicoat paint system utilizing a primer coat, an aqueous basecoat, and a clearcoat, where the multicoat paint system has been produced by means of a wet-on-wet technique. The clearcoat is produced using a pseudoplastic powder clearcoat slurry prepared by a secondary dispersion process or a melt emulsification process. The aqueous basecoat material used to produce the aqueous basecoat comprises a dispersed graft copolymer whose particles are composed of a hydrophobic core of copolymerized olefinically unsaturated monomers and of a hydrophilic shell which comprises a polyurethane, where said copolymer is prepared by free-radical (co)polymerization of the monomers in the presence of at least one polyurethane containing specially selected olefinically unsaturated groups.

Abstract: A process for preparing derivatized poly(4-hydroxystryrene) having a novolak type structure which comprises the steps of (i) supplying a solution of methanol containing 4-hydroxyphenylmethylcarbinol, (ii) subjecting said solution to an acid catalyzed displacement reaction for a sufficient period of time and under suitable conditions of temperature and pressure to convert substantially all of said carbinol to 4-hydroxyphenylmethylcarbinol methyl ether in solution, (iii) polymerizing said ether containing solution in the presence of a suitable acid catalyst for a sufficient period of time and under suitable conditions of temperature and pressure to form a novolak type polymer.

Abstract: A method for producing a (meth)acrylic polymer particle comprises polymerizing a monomer (X) having a (meth)acryloyl group to produce a polymer particle, and polymerizing a monomer mixture (Y) in the presence of the polymer particle, in which the monomer (X) is 90 to 99.9% by mass and the monomer mixture (Y) is 0.01 to 10% by mass in terms of the ratio among monomer raw materials to be supplied for polymerization; and the monomer mixture (Y) comprises 1 to 80% by mol of a monomer (a) having a basic nitrogen atom or having a blocked isocyanate as a functional group, 5 to 80% by mol of a (meth)acrylate monomer (b) of at least one alcohol selected from the group consisting of an aliphatic alcohol having 2 or more carbon atoms, an aromatic alcohol, and a cyclic alkyl alcohol, and 0 to 94% by mol of a monomer (c) other than the monomer (a) and the monomer (b).

Abstract: A coated abrasive article includes a substrate and a patterned set of abrasive structures. Each abrasive structure of the patterned set of abrasive structures has an engineered microfeature.

Abstract: A curable coating composition comprising an acrylic polymer having an epoxide equivalent weight from about 150 to about 1500, a compound having acid and carbamate groups, and an aminoplast crosslinker may be applied to a substrate and cured at a temperature at which both acid and carbamate groups of the compound react. The composition may further contain a blocked polyisocyanate crosslinker to react with hydroxyl groups on the polymer and/or formed by reaction of epoxide with carboxylic acid groups.

Abstract: A process for producing an adhesive tape with single- or double-sided crosslinked pressure-sensitive acrylate hotmelt adhesive layer, wherein a crosslinker is added in the melt to a polyacrylate copolymer (“polyacrylate”) based on acrylic and/or methacrylic esters, the polyacrylate with crosslinker is conveyed to a coating unit, where it is applied to a web-form layer and following application is homogeneously crosslinked, where the crosslinker is a thermal crosslinker and some of the acrylic and/or methacrylic esters contain primary hydroxyl groups and addition takes place preferably in an extruder.