公开(公告)号：US20090306279A1

公开(公告)日：2009-12-10

申请号：US12097085

申请日：2006-10-23

申请人： Michael Tecklenborg ,  Bianca Giesen ,  Marco Deyda ,  Hubet Baumgart ,  Ulrike Rockrath ,  Corinna Aussmann ,  Joachim Woltering

发明人： Michael Tecklenborg ,  Bianca Giesen ,  Marco Deyda ,  Hubet Baumgart ,  Ulrike Rockrath ,  Corinna Aussmann ,  Joachim Woltering

IPC分类号： C09D5/03 ,  C09D133/10 ,  C09D133/08

CPC分类号： C09D5/031 ,  C08F220/18 ,  C08F220/28 ,  C09D133/06

摘要： Structurally viscous, curable, aqueous powder dispersions free entirely or substantially from organic solvents and comprising dimensionally stable particles (A) having an average particle size as measured by the laser diffraction method of D (v, 0.5)=1 to 10 μm, the dimensionally stable particles (A) comprising as binder 10% to 100% by weight of at least one (meth)acrylate copolymer (A1) having an OH number of 40 to 250 mg KOH/g and an acid number of 5 to 100 mg KOH/g and prepared by multistage copolymerization of(a11) hydroxyl-containing acrylate and/or methacrylate monomers and(a12) acid-group-containing olefinically unsaturated monomers in organic solution, where(1) in one stage the entirety or predominant fraction of monomers (a11), if appropriate together with a small fraction of the monomers (a12), has been (co)polymerized, before(2) in a further stage the entirety or predominant fraction of monomers (a12), if appropriate together with the remainder of monomers (a11), has been co)polymerized;process for preparing them; and their use.

摘要翻译： 结构上粘性的，可固化的水性粉末分散体，其完全或基本上不含有机溶剂，并且包含通过D（v，0.5）= 1-10微米的激光衍射法测得的具有平均粒径的尺寸稳定的颗粒（A） 包含作为粘合剂的10％至100重量％的至少一种OH值为40至250mg KOH / g和酸值为5至100mg KOH / g的（甲基）丙烯酸酯共聚物（A1）的稳定颗粒（A） 并通过（a11）含羟基的丙烯酸酯和/或甲基丙烯酸酯单体和（a12）含酸基的烯属不饱和单体在有机溶液中的多级共聚制备，其中（1）在一个阶段中，单体的整体或主要部分（ （a11）如果合适的话，一小部分单体（a12）在（2）之前已经（共）聚合，在另一个阶段中，单体（a12）的整体或主要部分如果合适，连同其余的 单体（a11） en co）聚合; 准备工作的过程; 和他们的使用。