公开(公告)号：DE3233840A1

公开(公告)日：1984-03-15

申请号：DE3233840

申请日：1982-09-11

Applicant: BASF AG

Inventor： GELLERT ROLAND DR ,  MATTHAEI LOTHAR ,  MELAN MICHAEL DR ,  KERCKOW ALBRECHT DR ,  PETERS KARL-CLEMENS DR ,  WISTUBA ECKEHARDT DR ,  WULGARIS SAVAS DR

IPC: C08F18/00 ,  C08F2/22 ,  C08F18/02 ,  C08F218/10 ,  C09D5/34 ,  C09J131/02 ,  C09J131/04 ,  C08F220/18 ,  C08F220/06 ,  C08L31/02 ,  C08L33/08 ,  C08L33/02 ,  C09J3/14 ,  C09D5/02

Abstract: 1. A binder for building adhesives, troweling mixes and plasters which is based on a halogen-free emulsion copolymer of monoolefinically unsaturated carboxylates, wherein the emulsion copolymer comprises (a) from 55 to 72 % by weight of vinyl propionate, (b) from 44,9 to 27,5 % by weight of tert.-butyl acrylate, (c) from 0.1 to 0.5 % by weight of acrylic acid or methacrylic acid, and (d) from 0 to 17.5 % by weight of a monoolefinically unsaturated carboxylate from the group comprising vinyl acetate, methyl acrylate and methacrylate, n- and isobutyl acrylate and methacrylate and dibutyl maleate, the percentages being based on the total amount of the monomers.