公开(公告)号：US20160326392A1

公开(公告)日：2016-11-10

申请号：US15104828

申请日：2014-11-19

申请人： BASF COATINGS GMBH

发明人： Bernhard STEINMETZ ,  Nadia LUHMANN ,  Peggy JANKOWSKI ,  Michael MATURA ,  Hardy REUTER ,  Stephan SCHWARTE

IPC分类号： C09D17/00 ,  C09D7/12

CPC分类号： C09D17/001 ,  C08F283/006 ,  C08F290/147 ,  C08G18/0819 ,  C08G18/4288 ,  C08L75/06 ,  C09D7/65 ,  C09D17/004 ,  C09D17/006 ,  C09D17/007 ,  C09D175/06

摘要： The present invention relates to a pigment paste comprising at least one aqueous dispersion comprising at least one copolymer, said copolymer being preparable by (i) initially charging an aqueous dispersion of at least one polyurethane, and then (ii) polymerizing a mixture of olefinically unsaturated monomers in the presence of the polyurethane from (i), in which (a) a water-soluble initiator is used, (b) the olefinically unsaturated monomers are metered in such that a concentration of 6.0% by weight, based on the total amount of olefinically unsaturated monomers used for polymerization, in the reaction solution is not exceeded over the entire reaction time, and (c) the mixture of the olefinically unsaturated monomers comprises at least one polyolefinically unsaturated monomer, and further comprising a pigment, where the weight ratio of pigment to copolymer is at least 1.5. The invention further relates to the use of the copolymer for dispersion of pigments.

摘要翻译： 本发明涉及包含至少一种包含至少一种共聚物的水性分散体的颜料糊料，所述共聚物可通过（i）最初加入至少一种聚氨酯的水性分散体，然后（ii）使烯属不饱和的 在（i）中聚氨酯存在下的单体，其中（a）使用水溶性引发剂，（b）计量烯属不饱和单体，使得浓度为6.0重量％，基于总量 的用于聚合的烯属不饱和单体，在整个反应时间内不超过反应溶液，和（c）烯属不饱和单体的混合物包含至少一种聚烯烃不饱和单体，并且还包含颜料，其中重量比 的颜料与共聚物的摩尔比为至少1.5。 本发明还涉及共聚物用于分散颜料的用途。