发明名称 |
DISPERSIONS OF CROSSLINKED POLYMER MICRO-PARTICLES IN AQUEOUS MEDIA, A PROCESS FOR THE PREPARATION OF THESE DISPERSIONS, AND COATING COMPOSITIONS CONTAINING THESE DISPERSIONS |
摘要 |
Dispersions of crosslinked polymer micro-particles in aqueous media, a process for the preparation of these dispersionsr and coating compositions containing these dispersions. The invention relates to dispersions of crosslinked polymer micro-particles in aqueous media, which have been prepared: (1) by dispersing a mixture of the components (A) and (B) in an aqueous medium, the component (A) being composed of one or more polyester-polyols containing at least 2 hydroxyl groups, and the component (B) being composed of one or more polyisocyanate compounds, and the component (A) having available a number of ionic groups, preferably carboxylate groups, sufficient to form a stable dispersion, and at least one part of the components (A) and/or (B) containing more than 2 hydroxyl or isocyanate, respectively, groups per molecule and (2) by subsequently heating the dispersion thus obtained to a temperature sufficiently high for the components (A) and (B) to react to form crosslinked polymer micro-particles. |
申请公布号 |
CA1299309(C) |
申请公布日期 |
1992.04.21 |
申请号 |
CA19870530756 |
申请日期 |
1987.02.27 |
申请人 |
BASF LACKE + FARBEN AKTIENGESELLSCHAFT |
发明人 |
HILLE, HANS-DIETER;MUELLER, HORST;DOBBELSTEIN, ARNOLD |
分类号 |
C08G18/00;C08G18/08;C08G18/42;C08G18/75;C09D5/02;C09D175/04;C09D175/06 |
主分类号 |
C08G18/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|