公开(公告)号：DE3215969A1

公开(公告)日：1983-03-03

申请号：DE3215969

申请日：1982-04-29

Applicant: BASF AG

Inventor： PENNING ERNST DIPL CHEM DR ,  STANGER BERND DIPL CHEM DR ,  MUELLER ALFRED DIPL CHEM DR

IPC: C08F2/40 ,  C08F8/12 ,  C08F218/08 ,  C08F220/14 ,  C08F12/08 ,  C08F216/06 ,  C08F228/02

Abstract: An aqueous solution of a copolymer which greatly retards the polymerisation of styrene in aqueous medium is obtained by emulsion copolymerisation of predominant amounts of vinyl acetate and methyl acrylate and secondary amounts of acrylic acid, monoolefinically unsaturated sulphoalkyl esters or amides and vinyl sulphonate, and partial hydrolysis of the resultant copolymer emulsion.