Patent ID: 6329480
Filing Date: 2001-12-11
Classification: C08F

Abstract:
A process for the preparation of a block copolymer having at least one polymer block (A) comprising a polymerized acrylic acid ester (a) and at least one polymer block (B) comprising another polymerized acrylic or polymerized methacrylic monomer (b) having a chemical structure different from said acrylic acid ester (a), comprising:polymerizing said acrylic acid ester (a) and said monomer (b) in the presence of an organolithium compound and an organoaluminum compound represented by the following formula (I):AlR.sup.1 R.sup.2 R.sup.3 (I)whereinR.sup.1 represents a substituted or unsubstituted alkyl group having at least 3 carbon atoms, a substituted or unsubstituted alkoxy group having at least 3 carbon atoms or a substituted or unsubstituted aryloxy group,R.sup.2 and R.sup.3 each independently represent a substituted or unsubstituted aryloxy group, or together form a substituted or unsubstituted arylenedioxy group.