Lacquer binders, a process for coating heat resistant...

Details Lacquer binders, a process for coating heat resistant... Lacquer binders, a process for coating heat resistant...

C - Chemistry, Metallurgy

09

D

117/191, 400/735

C09D 7/12 (2006.01) B05D 7/20 (2006.01) C08G 18/62 (2006.01) C08G 18/79 (2006.01) C08G 18/80 (2006.01) H01B 3/30 (2006.01)

Patent

CA 1325073

LACQUER BINDERS, A PROCESS FOR COATING HEAT RESISTANT SUBSTRATES AND THE COATED SUBSTRATES ABSTRACT OF THE DISCLOSURE The present invention is directed to lacquer binders containing polyvinyl acetal which are suitable for the formation of films and coatings and contain mixtures of a) polyvinyl acetals and b) organic compounds containing (i) carbodiimide and/or uretone imine groups and (ii) blocked isocyanate groups, the mixtures containing from 1 to 300 parts by weight of component b) per 100 parts by weight of component a). The invention is also directed to a process for the formation of coatings on heat resistant substrates by coating these substrates with a coating composition containing binder, inert solvent and optionally the conventional auxiliary agents and additives used in lacquer technology, followed by curing of the coating at temperatures above about 80°C, characterized in that the coating compositions used contain bindery of the type mentioned above. Finally, the present invention is directed to these coated heat resistant substrates.

566597

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