B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
204/91.62
B05D 3/06 (2006.01) B05D 7/26 (2006.01) C09D 167/06 (2006.01)
Patent
CA 1302949
23189-6495 Process for the production of UV-hardened opaquely pigmented coatings A b s t r a c t The invention relates to a process for the production of UV-hardened opaquely pigmented coatings, in which a polyester lacquer of 100 parts by weight of air-drying polyester, 0.1 to 10 parts by weight of cellulose nitrate, 0 to 30% by weight, based on the cellulose nitrate, of a placticizer for cellulose nitrate, 10 to 150 parts by weight of pigment, 1 to 10 parts by weight of hydroperoxide, as an initiator, 0.005 to 1 part by weight of siccative, 0.5 to 5 parts by weight of photoinitiator is applied in an amount of 60 to 150 g/m2 to the substrate and the lacquer film is pregelled for 1 to 5 minutes at a temperature of 50 to 80°C and is then hardened under UV radiation wherein the air- drying polyester is free from copolymerizable monomers and contains .beta.,.gamma.-ethylenically unsaturated ether groups. The coatings so prepared, are particularly suitable for coating wood, wood- like materials and films of plastic. Le A 24 440
534402
Kremer Wolfgang
Meixner Jurgen
Muller Manfred
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
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