公开(公告)号：US20190092946A1

公开(公告)日：2019-03-28

申请号：US15513599

申请日：2015-07-31

Applicant: BASF Coatings GmbH

Inventor： Audree ANDERSEN ,  Manuela NIEMEIER ,  Simone HESENER

IPC: C09D5/00 ,  C09D175/06 ,  C08G18/73 ,  C08G18/75 ,  C08G18/77 ,  C08G18/72 ,  C08G18/62 ,  C08G18/42 ,  C08G18/40

Abstract: The present invention relates to a mixture (M) which can be used as curing agent and as adhesion promoter and which comprises at least two components (M1) and (M2), which are different from one another and have in each case independently of one another free and/or blocked isocyanate groups, and which optionally comprises a further component (M3) different from (M1) and (M2); component (M1) comprises at least one aliphatic polyisocyanate, and component (M2) comprises at least one aliphatic polyisocyanate having polyether units, wherein the relative weight ratio of (M1) and (M2) in (M) to one another is in a range from 25:1 to 3:1, based in each case on the solids content of (M1) and (M2), and at least one of the components (M1), (M2), and optionally (M3) present in (M) has hydrolyzable silane groups, to a use of (M) as curing agent and adhesion promoter in a coating composition, to such a coating composition, and to methods for at least partly coating a substrate with a surfacer coat and for at least partly coating a substrate with a multicoat paint system.

公开(公告)号：US20160312036A1

公开(公告)日：2016-10-27

申请号：US15104771

申请日：2014-12-17

Applicant: BASF COATINGS GMBH

Inventor： Audree ANDERSEN ,  Cathrin CORTEN ,  Manuela NIEMEIER ,  Frederik FOELLING ,  Simone HESENER ,  Nicole FREITAG ,  Stefanie BOSHE-PLOIS

IPC: C09D5/00 ,  B05D7/14 ,  B05D7/00 ,  C09D167/06

CPC classification number: C09D5/002 ,  B05D7/14 ,  B05D7/542 ,  B05D7/544 ,  B05D7/546 ,  C08G18/6225 ,  C08G18/68 ,  C08G18/718 ,  C08G63/52 ,  C08G63/6958 ,  C08G63/918 ,  C08K5/5425 ,  C09D167/06 ,  C09D175/04 ,  C08L75/06 ,  C08L67/06

Abstract: The present invention relates to a solventborne primer surfacer which comprises at least one additive preparable by reacting at least one alpha,omega-hydroxy-functionalized oligoester which possesses an OH number of 30 to 160 mg KOH/g, a theoretical carbon-carbon double bond content of 1 to 2.5 mmol/g, a number-average molecular weight of 1000 to 3000 g/mol, and a weight-average molecular weight of 2800 to 10 000 g/mol, and at least one alkoxysilane which possesses an OH-reactive functional group, the sum of the weight percentage fractions of all additives of the invention being 0.5 to 10 wt %, based on the total amount of the solventborne primer surfacer. The present invention further relates to a process for producing multicoat paint systems, and to multicoat paint systems producible by means of said process. The invention further relates to the use of the additive identified above in solventborne primer surfacers for improving adhesion.

Abstract translation: 本发明涉及一种溶剂型底漆二面体，其包含至少一种可通过使至少一种具有30至160mg KOH / g OH值的α，ω-羟基官能化低聚酯与理论碳 - 碳双键 含量为1〜2.5mmol / g，数均分子量为1000〜3000g / mol，重均分子量为2800〜10000g / mol，以及至少一种具有OH反应性的烷氧基硅烷 官能团，基于溶剂型底漆二油酸酯的总量，本发明所有添加剂的重量百分比分数的总和为0.5至10重量％。 本发明还涉及一种生产多色漆系统的方法，以及通过所述方法可生产的多色漆系统。 本发明还涉及上述在溶剂型底漆表面活性剂中用于改善粘附性的用途。