C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 175/04 (2006.01) C08G 18/10 (2006.01)
Patent
CA 2139456
Moisture-curing, one-component coating compositions wherein the binder contains a mixture of A) 100 parts by weight of a polyisocyanate or polyisocyanate mixture of the diphenylmethane series, B) 40 to 150 parts by weight of NCO prepolymers with an NCO content of 1.5 to 12% by weight based on aromatic polyisocyanates and C) 10 to 90 parts by weight of at least one aliphatic lacquer polyisocyanate and the use of the coating compositions for the production of coatings on various substrates. The present invention relates to moisture-curing one-component coating compositions containing as binder a polyisocyanate component containing A) 100 parts by weight of a polyisocyanate or polyisocyanate mixture of the diphenyl methane series having an NCO content of 20 to 33% by weight, B) 40 to 150 parts by weight of one or more NCO prepolymers which have an NCO content of 1.5 to 12% by weight prepared from aromatic polyisocyanates and C) 10 to 90 parts by weight of an aliphatic polyisocyanate component containing one or more lacquer polyisocyanates based on hexamethylene diisocyanate. The present invention also relates to the use of these one- component coating compositions for coating various substrates.
Hentschel Karl-Heinz
Schmalstieg Lutz
Schwindt Jurgen
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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