Abstract: A method is provided for sealing discontinuities in vehicle bodywork, using an at least two-layer adhesive product which comprises at least one thermally activatable adhesive layer and a film layer of a polymeric material, where first the adhesive product is positioned with the adhesive layer onto the discontinuity for sealing, the adhesive layer sealingly wets the discontinuity, optionally after temperature increase, at elevated temperature the thermal activation of the adhesive ensues, characterized in that the adhesive layer used comprises a layer of a thermally activatable adhesive, specifically a layer based on a vulcanizable adhesive, and the thermal activation takes place with vulcanization of the adhesive.

Abstract: The present invention relates to a light-curing, reactive, pressure-sensitive adhesive film of adhesive. With the film of adhesive of the invention, structural bond strengths can be achieved. The film of adhesive comprises (a) at least one reactive monomer or reactive resin, (b) an initiator, (c) a photoredox catalyst, (d) a polymer of monomers comprising N-vinyl compounds and (e) a film-forming polymer.

Abstract: The invention relates to a solution in particular for the pre-treatment of a surface, containing, preferably consisting of: I) at least one first silane of formula (I) with R1, R2, R3 independently selected from the groups methyl, ethyl, 2 methoxyethyl, propyl, i-propyl, butyl, benzyl, wherein m=0 or 1, n=3 to 12, p=1 or 2, and for p=1, Y=a functional group selected from the groups (meth)acryl, (meth)acryloxy, mercapto, ureido, —NH—CH2—CH2—NR4R5, —NR4R5 (with R4 and R5 independently selected from the groups H, alkyl, phenyl, benzyl, cycloalkyl), or for p=2, Y=NH; II) at least one second silane of formula (II) with R1, R2, R3 independently selected from the groups methyl, ethyl, 2 methoxyethyl, propyl, i-propyl, butyl, benzyl, wherein m=0 or 1, R8=H, alkyl, phenyl, benzyl or cycloalkyl; III) at least one alcohol; and IV) water.

Abstract: Thermally vulcanisable, meltable adhesives and processes have a meltable polybutadiene-polyurethane, ground sulphur and optionally at least one vulcanisation accelerator, at least one filling material, at least one epoxide resin, at least one tackifier resin, bitumen, at least one softener and further auxiliary and additive materials, wherein said adhesives and processes can be thermally vulcanised within a temperature range of 130° C. to 230° C., such that same, as well as an adhesive strip produced from same, can be used for adhesion and/or sealing in the automotive industry, as well as in structural work on oiled sheet metal, and in the painting line on e-coated or otherwise painted sheet metal, for example, for crimp fold adhesion, for crimp fold sealing, for seam sealing, for lining adhesion, for hole closure and much more.

Abstract: A thermally vulcanizable pressure-sensitive adhesive comprising a chemically precrosslinked, pressure-sensitively adhesive polybutadiene-polyurethane and ground sulfur, which during the heating phase remains pressure-sensitively adhesive, does not liquefy and hence in this phase, in which the vulcanization has not yet started and the curing has not yet commenced, has shear strength at least under load to moderate low, is able to transmit forces and hence to perform holding, a process for producing it, an adhesive tape comprising this pressure-sensitive adhesive, and a process for producing the adhesive tape.

Abstract: A hydroxyl-functionalized polybutadiene polyurethane hotmelt prepolymer that comprises the chemical reaction product of at least one polybutadiene diol, at least one chain extender having a hydroxyl functionality of two and a molecular weight of less than or equal to 300 g/mol and optionally at least one polybutadiene polyol that has a number-average mean functionality between greater than 2.0 and less than or equal to 3.0 with at least one aliphatic or alicyclic diisocyanate, is thermally vulcanizable, and at room temperature is sufficiently solid or high-viscosity that it can be rolled into a roll as a film applied to a carrier without flowing out or being squeezed out on the side.

Abstract: Method of adhesively bonding two surfaces by means of a reactive adhesive film system comprising at least two adhesive films (F1 and F2), each comprising at least one reactive component (R1 and R2), adhesive bonding being effected by a reaction which requires the presence of both reactive components (R1 and R2), wherein, prior to adhesive bonding, a separating layer (T) which is impermeable to the reactive components is provided between the adhesive films which are to be brought into contact with one another for the reaction, and the separating layer (T) is removed at least in part by means of a laser in order to effect bonding, so that the adhesive films (F1 and F2) come into direct contact with one another and the reaction begins in the presence of both reactive components (R1 and R2), and reactive adhesive film system for use in this method.

Abstract: An adhesive, more particularly a thermally curable, meltable, preferably pressure-sensitive adhesive, which is curable thermally from a temperature of 110° C., is storage-stable for approximately one month at 60° C. and longer than one year at 23° C., and an adhesive tape produced therefrom, comprising an epoxide-functionalized acrylonitrile/butadiene copolymer having on average more than 1.5 epoxide groups per molecule, and the ground reaction product of phthalic anhydride and diethylenetriamine, for use in the automotive industry both in bodyshell construction on oiled metal sheets and in the coating line on cathodically electrocoated or otherwise-coated metal sheets, for bonding and/or sealing, for example for hem fold bonding, for hem fold sealing, for seam sealing, for underseal bonding, for hole stopping, and much more.

Abstract: A method is provided for sealing discontinuities in vehicle bodywork, using an at least two-layer adhesive product which comprises at least one thermally activatable adhesive layer and a film layer of a polymeric material, where first the adhesive product is positioned with the adhesive layer onto the discontinuity for sealing, the adhesive layer sealingly wets the discontinuity, optionally after temperature increase, at elevated temperature the thermal activation of the adhesive ensues, characterized in that the adhesive layer used comprises a layer of a thermally activatable adhesive, specifically a layer based on a vulcanizable adhesive, and the thermal activation takes place with vulcanization of the adhesive.

Abstract: A hydroxyl-functionalized polybutadiene polyurethane hotmelt prepolymer that comprises the chemical reaction product of at least one polybutadiene diol, at least one chain extender having a hydroxyl functionality of two and a molecular weight of less than or equal to 300 g/mol and optionally at least one polybutadiene polyol that has a number-average mean functionality between greater than 2.0 and less than or equal to 3.0 with at least one aliphatic or alicyclic diisocyanate, is thermally vulcanizable, and at room temperature is sufficiently solid or high-viscosity that it can be rolled into a roll as a film applied to a carrier without flowing out or being squeezed out on the side.

Abstract: Primer for adhesive tape with improved adhesion promoting properties, comprising a mixture G, which is dissolved or dispersed in one or more solvents, consisting of at least one copolymer obtained by copolymerization of a monomer mixture comprising an amount of at least 90 wt % of the following monomers: vinylcaprolactam and/or vinylpyrrolidone; one or more of the monomers a) and/or b): a) acrylic acid ester of a linear, primary alcohol having 2 to 10 carbon atoms in the alkyl group of the alcohol, b) acrylic acid ester of a branched, non-cyclic alcohol having 3 to 12 carbon atoms in the alkyl group, at least one chlorinated polyolefin, and at least one metal compound selected from the group consisting of metal acetylacetonates, metal alkoxides and alkoxy-metal acetylacetonates.

Abstract: A thermally vulcanizable pressure-sensitive adhesive comprising a chemically precrosslinked, pressure-sensitively adhesive polybutadiene-polyurethane and ground sulfur, which during the heating phase remains pressure-sensitively adhesive, does not liquefy and hence in this phase, in which the vulcanization has not yet started and the curing has not yet commenced, has shear strength at least under load to moderate low, is able to transmit forces and hence to perform holding, a process for producing it, an adhesive tape comprising this pressure-sensitive adhesive, and a process for producing the adhesive tape.

Abstract: Thermally vulcanisable, meltable adhesives and processes have a meltable polybutadiene-polyurethane, ground sulphur and optionally at least one vulcanisation accelerator, at least one filling material, at least one epoxide resin, at least one tackifier resin, bitumen, at least one softener and further auxiliary and additive materials, wherein said adhesives and processes can be thermally vulcanised within a temperature range of 130° C. to 230° C., such that same, as well as an adhesive strip produced from same, can be used for adhesion and/or sealing in the automotive industry, as well as in structural work on oiled sheet metal, and in the painting line on e-coated or otherwise painted sheet metal, for example, for crimp fold adhesion, for crimp fold sealing, for seam sealing, for lining adhesion, for hole closure and much more.

Abstract: Method of adhesively bonding two surfaces by means of a reactive adhesive film system comprising at least two adhesive films (F1 and F2), each comprising at least one reactive component (R1 and R2), adhesive bonding being effected by a reaction which requires the presence of both reactive components (R1 and R2), wherein, prior to adhesive bonding, a separating layer (T) which is impermeable to the reactive components is provided between the adhesive films which are to be brought into contact with one another for the reaction, and the separating layer (T) is removed at least in part by means of a laser in order to effect bonding, so that the adhesive films (F1 and F2) come into direct contact with one another and the reaction begins in the presence of both reactive components (R1 and R2), and reactive adhesive film system for use in this method.

Abstract: The invention relates to a solution in particular for the pre-treatment of a surface, containing, preferably consisting of: I) at least one first silane of formula (I) with R1, R2, R3 independently selected from the groups methyl, ethyl, 2 methoxyethyl, propyl, i-propyl, butyl, benzyl, wherein m=0 or 1, n=3 to 12, p=1 or 2, and for p=1, Y=a functional group selected from the groups (meth)acryl, (meth)acryloxy, mercapto, ureido, —NH—CH2—CH2—NR4R5, —NR4R5 (with R4 and R5 independently selected from the groups H, alkyl, phenyl, benzyl, cycloalkyl), or for p=2, Y?NH; II) at least one second silane of formula (II) with R1, R2, R3 independently selected from the groups methyl, ethyl, 2 methoxyethyl, propyl, i-propyl, butyl, benzyl, wherein m=0 or 1, R8?H, alkyl, phenyl, benzyl or cycloalkyl; III) at least one alcohol; and IV) water.

Abstract: Reactive adhesive film system, comprising a first reactive adhesive film (A) and a second reactive adhesive film (B); use of the reactive adhesive film system described herein for the bonding of materials with nonpolar surfaces; composites comprising the reactive adhesive film system; and methods for the production of the reactive adhesive film system and method for increasing the adhesive properties of the reactive adhesive film system on nonpolar substrates.

Abstract: The invention relates to a primer for improving the adhesion of adhesive tapes to hydrophilic surfaces, such as, in particular, glass or ceramic. The primer according to the invention comprises, dissolved or dispersed in one or more solvents, a mixture G of at least one copolymer obtained by copolymerization of a monomer mixture comprising to at least 90 wt.

Abstract: Primer for adhesive tape with improved adhesion promoting properties, comprising a mixture G, which is dissolved or dispersed in one or more solvents, consisting of at least one copolymer obtained by copolymerization of a monomer mixture comprising an amount of at least 90 wt % of the following monomers: vinylcaprolactam and/or vinylpyrrolidone; one or more of the monomers a) and/or b): a) acrylic acid ester of a linear, primary alcohol having 2 to 10 carbon atoms in the alkyl group of the alcohol, b) acrylic acid ester of a branched, non-cyclic alcohol having 3 to 12 carbon atoms in the alkyl group, at least one chlorinated polyolefin, and at least one metal compound selected from the group consisting of metal acetylacetonates, metal alkoxides and alkoxy-metal acetylacetonates.

Abstract: Primer comprising a mixture G, in dispersion or solution in one or more solvents, of at least one copolymer obtained by copolymerizing a monomer mixture comprising at least 90 wt % of the following monomers: vinylcaprolactam and/or vinylpyrrolidone and one or more monomers a) and/or b): a) acrylic esters of a linear, primary alcohol having 2 to 10 carbon atoms in the alkyl radical of the alcohol, b) acrylic esters of a branched non-cyclic alcohol having 3 to 12 carbon atoms in the alkyl radical of the alcohol, at least one organofunctional silane of the general structure (I): (R1O—)xSi(R2)y(R3)z, at least one metal compound selected from the group consisting of metal acetylacetonates, metal alkoxides and alkoxy-metal acetylacetonates.

Abstract: A blank and/or diecut permanently closes of holes in one or more metal sheets and/or plastics parts. The blank and/or diecut comprises a carrier having at least one thermosetting plastic, wherein the diecut is self-adhesive at least prior to curing.