B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
117/145
B05D 1/36 (2006.01) B05D 7/00 (2006.01) C09D 7/12 (2006.01) C09D 161/28 (2006.01)
Patent
CA 2094778
The presence of an acid catalyst in a clearcoat composition enables the production of a wrinkle-free coating in a process comprising the simultaneous curing of applied layers of both a waterborne basecoat composition as well as a solventborne clearcoat composition. The waterborne basecoat composition comprises an organic resin, a crosslinker, and a free amine. The solventborne clearcoat composition comprises an acid catalyst in an amount significantly higher than the quantity normally used in high solids original equipment manufacturer clearcoat compositions, a polymer which is crosslinkable with melamine, and a monomeric melamine type crosslinking resin for crosslinking the polymer. The process is most preferably used to make an automotive quality topcoat.
Basf Corporation
Lau David K.k.
Robic
LandOfFree
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