公开(公告)号：WO2015040015A2

公开(公告)日：2015-03-26

申请号：PCT/EP2014069677

申请日：2014-09-16

Applicant: BASF SE

Inventor： FERNANDEZ RAMIREZ GIMMY ALEX ,  LAWRENZ DIRK ,  SALARI JOHANNES WILHELMUS OTTO ,  FLEISCHHAKER FRIEDERIKE ,  BRYM ANNA KATHARINA ,  GRUNDHÖFER SVEN

IPC: C08J3/05

CPC classification number: C08J3/05 ,  C08J3/07 ,  C08J2369/00 ,  C08L69/00 ,  D21H19/36 ,  D21H19/60 ,  C08L29/04

Abstract: The invention relates to an aqueous polymer dispersion of aliphatic polycarbonate polymers, to a method for producing said aqueous polymer dispersion, and to the use of said aqueous polymer dispersion in coating compositions, in particular as binders in paper coating slips, as sizing agents for paper, as paper strengthening agents, as binder compositions for nonwoven fabrics, in adhesives, or for formulating active ingredients. The aqueous polymer dispersion according to the invention contains: i) 5 to 50 wt%, in particular 8 to 40 wt%, with respect to the total weight of the dispersion, of at least one aliphatic polycarbonate polymer, in particular polypropylene carbonate; ii) 1 to 20 wt%, in particular 2 to 15 wt%, with respect to the total weight of the dispersion, of at least one partially or completely saponified polyvinyl alcohol; and iii) water, wherein the weight ratio of aliphatic polycarbonate polymers to the partially or completely saponified polyvinyl alcohol is in the range of 1 : 1 to 20 : 1, in particular in the range of 1.2 : 1 to 10 : 1.

Abstract translation: 本发明涉及一种水性聚合物分散体的脂肪族聚碳酸酯聚合物，其制备方法及其在涂料组合物中使用的过程，特别是作为在纸涂料粘合剂，上浆剂的纸张，作为纸力剂，作为用于粘结剂组合物非织造布，粘接剂，或用于活性成分的制剂 ， 本发明的水性聚合物分散体，包括：ⅰ）5-50重量％，特别是8至40重量％，基于分散体的总重量，至少一种脂肪族聚碳酸酯聚合物，尤其是聚碳酸亚丙酯; ⅱ）1〜20重量％，特别是2至15重量％，基于分散体的总重量，至少一种部分或完全皂化的聚乙烯醇; 和iii）水，其中的部分或完全水解的聚乙烯醇脂族聚碳酸酯聚合物的重量比在1的范围内：在范围为1，特别是从1.2：1：1至20 1至10度。