公开(公告)号：US20160319152A1

公开(公告)日：2016-11-03

申请号：US15104442

申请日：2014-11-19

Applicant: BASF COATINGS GMBH

Inventor： Hardy REUTER ,  Bernhard STEINMETZ ,  Matthias BLOHM ,  Carsten TEICHMANN ,  Bianca GOEB

IPC: C09D175/04 ,  B05D1/00 ,  B05D7/00 ,  C25D13/04 ,  C09D5/44

CPC classification number: C09D175/04 ,  B05D1/007 ,  B05D7/572 ,  B05D7/577 ,  C09D5/4488 ,  C25D13/04

Abstract: The present invention relates to a method for producing a multicoat paint system on a metallic substrate, in which a basecoat or a plurality of directly successive basecoats are produced directly on a metallic substrate coated with a cured electrocoat, a clearcoat is produced directly on the one basecoat or the uppermost of the plurality of basecoats, and then the one or more basecoats and the clearcoat are jointly cured, and wherein at least one basecoat material used for production of the basecoats comprises 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.

Abstract translation: 本发明涉及一种在金属基材上制造多色漆系统的方法，其中在涂有固化的电泳涂层的金属基材上直接制造底漆或多个直接连续的底漆，直接在一个 底涂层或多个底涂层的最上面，然后一个或多个底涂层和透明涂层共同固化，并且其中用于制备底涂层的至少一种底漆材料包含至少一种包含至少一种共聚物的水性分散体，所述至少一种共聚物 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）在（i）的聚氨酯存在下聚合烯属不饱和单体的混合物，其中（a）水溶性 使用引发剂，（b）将烯属不饱和单体计量，使得浓度为6.0重量％，基于烯属 用于聚合的烯丙基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。

公开(公告)号：US20160152862A1

公开(公告)日：2016-06-02

申请号：US14905595

申请日：2014-06-04

Applicant: BASF COATINGS GMBH

Inventor： Hardy REUTER ,  Bernhard STEINMETZ ,  Matthias BLOHM ,  Carsten TEICHMANN ,  Bianca GOEB

IPC: C09D151/08 ,  B05D7/00

CPC classification number: C09D151/08 ,  B05D7/532 ,  C08F283/006 ,  C08F290/067 ,  C08G18/0823 ,  C08G18/10 ,  C08G18/3271 ,  C08G18/348 ,  C08G18/4288 ,  C08G18/4854 ,  C08G18/6633 ,  C08G18/6692 ,  C08G18/755 ,  C08G18/765 ,  C08G18/8108 ,  C08G18/8141 ,  C09D175/06 ,  C09D175/08 ,  C08G18/3275 ,  C08G18/3206

Abstract: An aqueous dispersion comprising at least one copolymer, the copolymer being preparable by initially charging an aqueous dispersion of at least one polyurethane, and then polymerizing a mixture of olefinically unsaturated monomers in the presence of the polyurethane, where a water-soluble initiator is used, the metered addition of the olefinically unsaturated monomers is effected in such a way that a concentration of 6.0% by weight, based on the total amount of olefinically unsaturated monomers, in the reaction solution is not exceeded over the entire duration of the reaction, and the mixture of the olefinically unsaturated monomers comprises at least one polyolefinically unsaturated monomer. The invention further relates to the use of the aqueous dispersion for production of coating materials, to a process for producing the aqueous dispersion, to a basecoat comprising the aqueous dispersion, and to the use of the basecoat for coating of automobile bodies and/or parts for installation on automobile bodies.

Abstract translation: 包含至少一种共聚物的水分散体，所述共聚物可通过首先加入至少一种聚氨酯的水性分散体，然后在使用水溶性引发剂的聚氨酯存在下聚合烯属不饱和单体的混合物， 烯属不饱和单体的计量加入是以这样的方式进行的，即在反应的整个持续时间内不超过反应溶液中基于烯属不饱和单体总量的6.0重量％的浓度， 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。 本发明还涉及用于制备涂料的水分散体，用于生产水分散体的方法，包括水分散体的底涂层的用途，以及用于涂覆汽车车身和/或部件的底漆的用途 用于安装在汽车车身上。