Patent ID: 6767976
Filing Date: 2004-07-27
Classification: C08F

Abstract:
A process for anionically polymerizing a methacrylic ester or an acrylic ester, comprisingreacting a methacrylic ester or an acrylic ester in the presence of a solvent; a polymerization initiator, wherein said polymerization initiator comprises the reaction product of a compound having a 1,1-diaryl-1-alkene structure and an organic alkali metal compound; an additive other than the solvent, wherein said additive comprises an ether compound or a tertiary polyamine compound and is present in a mole quantity of at least 0.1 times in terms of the moles of the polymerization initiator or the organic alkali metal compound; and admixing a tertiary organoaluminum compound of formula Al-O-Ar wherein Ar is an aromatic group.