Patent ID: 9410028
Filing Date: 2016-08-09
CPC Classification: C08F,C08K

Claim Text:
1. Process for preparing a polyacrylate pressure-sensitive adhesive from a reaction solution consisting of a solvent selected from the group consisting of a single organic solvent or a mixture of two or more organic solvents, one or more monomers, at least 70% by weight of the monomers being acrylic and/or methacrylic esters, free radical initiator and one or more natural or non-natural α-amino acids of the following structural formula where R (i) linear and branched C (ii) acyl radicals (—C(O)—R′), alkoxycarbonyl radicals (—C(O)—O—R′), carbamoyl radicals (—C(O)—NR′R″), and sulphonyl radicals (—SO and X is oxygen (O), sulphur (S) or selenium (Se), and n is a natural number including zero by free-radical polymerization, wherein the solvent is removed from the polymerization product after the polymerization, down to a residual solvent fraction of not more than 2% and wherein the amino acid or acids remain in the polymerization product when the solvent is removed.