公开(公告)号：WO2020180616A1

公开(公告)日：2020-09-10

申请号：PCT/US2020/020149

申请日：2020-02-27

Applicant: CELANESE INTERNATIONAL CORPORATION

Inventor： JUNK, Matthias ,  FICHTNER, Thomas ,  MOMPER, Bernhard

IPC: C08F220/18 ,  C09D143/04

Abstract: A water-based coating composition has a pH of at least 10, is substantially free of preservatives and comprises (A) a pigment; and (B) an aqueous polymer dispersion produced by free-radical aqueous emulsion polymerization of a mixture comprising i) 20 to 79.95 parts by weight of at least one first monomer whose homopolymer has a Tg 25 ° C, and iii) 0.05-5 parts by weight of at least one hydrolyzable silane of the formula (R 1 ) m Si(R 2 )n(OR 3 ) 4- m-n, with n = 0-3, m = 0-3 and n+m = 0-3, R 1 and R 2 independently being selected from functionalized or non-functionalized, unbranched or branched alkenyl, alkyl, aryl, and aralkyl radicals and R 3 being selected from acyl (C(O)Z) radicals, where Z is an substituted or unsubstituted, unbranched or branched alkyl, aryl or aralkyl group or hydrogen.