公开(公告)号：US20150284482A1

公开(公告)日：2015-10-08

申请号：US14432666

申请日：2013-09-27

Applicant: BASF SE

Inventor： Oral Aydin ,  Andrea Schindler ,  Florian Buesch ,  Juergen Siroky ,  Matthias Gerst

IPC: C08F2/22

CPC classification number: C08F2/22 ,  C08F220/18

Abstract: A description is given of a process for preparing an aqueous polymer dispersion having a high solids content of greater than 60 wt. %. In this process, a dispersed polymer is prepared by radical emulsion polymerization in the presence of a polymeric protective colloid. The polymer is formed to an extent of at least 80 wt. % of (meth)acrylate ester monomers and the polymeric protective colloid is formed from acid monomers and to an extent of at least 10 wt. % from (meth)acrylate ester monomers, and the sum of (meth)acrylate ester monomers and acid monomers in the protective colloid is at least 80 wt. %. The emulsion polymerization takes place in a monomer feed process, the initial rate of the monomer feed being lower than the final rate.One of the possible uses of the aqueous polymer dispersions is as adhesives.

Abstract translation: 给出了一种制备高固含量大于60重量％的聚合物水分散体的方法。 ％。 在该方法中，在聚合物保护胶体存在下通过自由基乳液聚合制备分散的聚合物。 聚合物的形成程度至少为80wt。 （甲基）丙烯酸酯单体的％，聚合物保护胶体由酸单体形成，至少10重量％ （甲基）丙烯酸酯单体的％，保护胶体中的（甲基）丙烯酸酯单体和酸单体之和为至少80重量％。 ％。 乳液聚合在单体进料过程中进行，单体进料的初始速率低于最终速率。 水性聚合物分散体的可能用途之一是粘合剂。