公开(公告)号：US20220403185A1

公开(公告)日：2022-12-22

申请号：US17755860

申请日：2020-11-03

Applicant: BASF COATINGS GMBH

Inventor： Jan WINSBERG ,  Guenter KLEIN ,  Claas Henrik HOEVELMANN ,  Christian ALTER ,  Stefanie SCHROEDER ,  Melanie GLOMB ,  Ulrike WENKING

IPC: C09D7/63 ,  C09D7/80 ,  C08G18/80 ,  B05D7/00

Abstract: Described herein is an aqueous basecoat composition including a silane-based additive as hardener/self-crosslinking material to improve adhesion of the basecoat to the under—and overlying coating layers, as well as the cohesion property of the basecoat itself. Also described herein is a mixer system for preparing an aqueous refinish basecoat composition including at least one base color component, at least one pigment-free component, at least one hardening component including the silane-based additive and optionally at least one rheology module as well as a method to prepare an aqueous basecoat composition from said mixer system. Further, described herein is a method of coating a substrate with the basecoat composition and a clearcoat composition and jointly curing the basecoat and clearcoat composition as well as to a coated substrate obtained from the method. Finally, described herein is a method of using the silane-based compound as hardening additive in aqueous basecoat compositions.

公开(公告)号：US20240240032A1

公开(公告)日：2024-07-18

申请号：US18557686

申请日：2022-05-17

Applicant: BASF COATINGS GMBH

Inventor： Jens LUECKERT ,  Frederik FOELLING ,  Peter MACHACZEK ,  Vera DIEPENBROCK ,  Claas Henrik HOEVELMANN ,  Britta SCHNIEDERS ,  Jan WINSBERG ,  Melanie GLOMB ,  Thomas FOCKE

IPC: C09D5/02 ,  C09D7/45 ,  C09D7/65 ,  C09D175/06

CPC classification number: C09D5/022 ,  C09D7/45 ,  C09D7/65 ,  C09D175/06

Abstract: Disclosed herein is a mixer system for producing aqueous coating materials including, within an aqueous mixing clear component B, an aqueous dispersion including an acrylic-based multi-stage emulsion polymer including silane functionality. Further disclosed herein is a method of producing a coating material from the mixer system as well as a method of producing a coating layer from the coating material.