Patent ID: 7071269

Claim:
A process for preparing acrylic pressure sensitive adhesives by means of radical polymerization of a monomer mixture to give a polyacrylate, wherein said polymerization is carried out with an initiator system comprising at least one triazolinyl compound of the general formula where R, R′, R″, R′″ are chosen independently of one another from the following group: branched and unbranched C 1 to C 18 alkyl radicals; C 3 to C 18 alkenyl radicals; C 3 to C 18 alkynyl radicals C 1 to C 18 alkoxy radicals C 1 to C 18 alkyl radicals substituted by at least one OH group or a halogen atom or a silyl ether; C 3 to C 18 alkenyl radicals; C 3 to C 18 alkynyl radicals C 2 -C 18 hetero alkyl radicals having at least one oxygen atom and/or an NR IV group in the carbon chain, it being possible for R IV to be any organic radical C 3 -C 18 alkenyl radicals, C 3 -C 18 alkynyl radicals, C 1 -C 18 alkyl radicals substituted by at least one ester group, amine group, carbonate group, cyano group, isocyano group and/or epoxide group and/or by sulfur C 3 -C 12 cycloalkyl radicals C 8 -C 10 aryl radicals hydrogen provided that R″ and R′″ cannot be hydrogen and that R″ and R′″ are joined together with one another to form a spiro compound.