Color stabilized water-dispersed polyurethane coating on...

Details Color stabilized water-dispersed polyurethane coating on... Color stabilized water-dispersed polyurethane coating on...

B - Operations, Transporting

32

B

117/195

B32B 27/08 (2006.01)

Patent

CA 1174538

ABSTRACT OF THE DISCLOSURE A polyurethane coated polyvinyl chloride or co-polymer which resists discoloration is provided by coating the substrate surface with an aqueous dispersed polyurethane treated with a mono-acid halide, mono-acid anhydride, carbethoxy cyclic imide or monoisocyanate. The coated composite even when subjected to temperatures in excess of 100 degress C for extended periods resists discoloration and remains thermo-color stable with ex- tended use.

383058

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