| abstract |
Adhesive composition comprising an amount of an adhesive and an amount of an additive, characterized in that the additive is a. a homopolymer of an α, β-unsaturated acrylic acid, which corresponds to formula I: CH2 = CR-COOH formula I where R is a substituent selected from the group of H, monovalent alkyl, aryl, alkylaryl radicals, cyclo alkyl radicals monovalent, alkoxy, haloalkyl, cyanoalkyl containing from 1 to 9 carbon atoms. or b. a copolymer thereof with at least one alkyl acrylate represented by formula II CH2 = CR'-CO-OR "formula II in which R 'is selected from the group of H, methyl, ethyl and where R' 'is a group C10-C30 alkyl, the homo- or copolymer having a molecular weight between 0.05-100 x 109 Dalton and being crosslinked with a cross-linking agent which is a polyfunctional vinylidene monomer with at least two CH2 = C terminal groups, such as for example in butadiene, isoprene, divinylbenzene and divinyl naphthalene. |