公开(公告)号：US20160236234A1

公开(公告)日：2016-08-18

申请号：US15027408

申请日：2014-11-18

Applicant: BASF COATINGS GMBH

Inventor： Bernhard STEINMETZ ,  Holger KRUMM ,  Stephanie Pei Yii GOH ,  Peter HOFFMANN ,  Hardy REUTER ,  Peggy JANKOWSKI ,  Nadia LUHMANN

IPC: B05D1/04 ,  B05B5/00

CPC classification number: B05D1/04 ,  B05B5/00 ,  B05D7/577

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 (CP), said copolymer (CP) 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 from (i), in which a water-soluble initiator is used, 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 the mixture of the olefinically unsaturated monomers comprises at least one polyolefinically unsaturated monomer, and comprises at least one linear hydroxy-functional reaction product (R) having an acid number less than 20 mg KOH/g, the preparation of which involves using at least one compound (v) containing two functional groups (v.1) and an aliphatic or araliphatic hydrocarbyl radical (v.2) which is arranged between the functional groups and has 12 to 70 carbon atoms.

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（CP ），所述共聚物（CP）可以通过首先加入至少一种聚氨酯的水性分散体，然后在来自（i）的聚氨酯存在下聚合烯属不饱和单体的混合物，其中使用水溶性引发剂 ，计量烯属不饱和单体，使得浓度为6.0重量％，基于烯属不饱和单体的总量 用于聚合的饱和单体在整个反应时间内不超过反应溶液，并且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，并且包含至少一种线性羟基官能反应产物（R），其具有 酸值小于20mg KOH / g，其制备方法包括使用至少一种含有两个官能团（v.1）和脂族或芳脂族烃基（v.2）的化合物（v） 官能团并且具有12至70个碳原子。

公开(公告)号：US20160326665A1

公开(公告)日：2016-11-10

申请号：US15105366

申请日：2014-11-18

Applicant: BASF Coatings GmbH

Inventor： Bernhard STEINMETZ ,  Nadia LUHMANN ,  Holger KRUMM ,  Peter HOFFMANN ,  Hardy REUTER ,  Peggy JANKOWSKI ,  Stephanie Pei Yii GOH

IPC: C25D13/22 ,  B05D7/00 ,  B05D1/04

CPC classification number: C25D13/22 ,  B05D1/04 ,  B05D7/572 ,  B05D7/577

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 linear hydroxy-functional reaction product (R) having an acid number of less than 20 mg KOH/g, the preparation of which involves using at least one compound (v) containing two functional groups (v.1) and an aliphatic or araliphatic hydrocarbyl radical (v.2) which is arranged between the functional groups and has 12 to 70 carbons atoms.

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线性羟基官能反应产物（R） 其酸值小于20mg KOH / g，其制备方法包括使用至少一种含有两个官能团（v.1）和脂族或芳脂族烃基（v.2）的化合物（v） 在官能团之间并具有12至70个碳原子。