C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 133/14 (2006.01) B05D 1/36 (2006.01) C08G 18/40 (2006.01) C08G 18/62 (2006.01) C09D 133/06 (2006.01) C09D 161/20 (2006.01) C09D 167/00 (2006.01) C09D 175/00 (2006.01) C09D 175/04 (2006.01) C08L 61/20 (2006.01) C08L 75/00 (2006.01)
Patent
CA 2135412
26 Herberts Gesellschaft mit beschrankter Haftung A B S T R A C T The description relates to coating agents and use thereof in production of transparent top layers of multi-layer coatings. The coating agents contain binders based on hydroxy- functional(meth)acrylic copolymers, blocked polyisocyanates, aminoplastic resins and, optionally, hydroxy-functional polyester resins together with conventional additives and solvents, and are characterised in that the binders contain: A) 25 - 90 wt.% of one or more hydroxy-functional (meth)acrylic copolymers, obtainable from a1) 10 - 30 wt.% styrene and/or one or more styrene derivatives a2) 20 - 40 wt.% of one or more glycidyl esters and/or vinyl esters of alpha, alpha'-dialkyl- substituted branched aliphatic monocarboxylic acids, a3) 5 - 15 wt.% of one or more hydroxyalkyl esters of (meth)acrylic acid, a4) 1 - 15 wt.% of (meth)acrylic acid, a5) 15 - 35 wt.% of one or more (meth)acrylic acid esters, B) 0 - 40 wt.%, of one or more hydroxy-functional (meth)acrylic copolymers, obtainable from b1) 5 - 20 wt.% styrene and/or one or more styrene derivatives, b2) 5 - 20 wt.% caprolactone, 27 b3) 10 - 30 wt.% of one or more hydroxyalkyl esters of (meth)acrylic acid, b4) 1 - 3 wt.% (meth)acrylic acid, b5) 30 - 50 wt.% of one or more (meth)acrylic acid esters, C) 0 - 40 wt.%, of one or more hydroxy-functional polyesters, D) 5 - 35 wt.% of one or more blocked polyisocyanates and E) 5 - 30 wt. % of one or more aminoplastic resins, the sum of components a1) to a5), b1 to b5) and A to E) being 100 in each case.
Bederke Klaus
Dahm Ralf
Flosbach Carmen
Hermann Friedrich
Kerber Herrmann
Herberts Gesellschaft Mit Beschrankter Haftung
Kirby Eades Gale Baker
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