B - Operations – Transporting – 32 – B
Patent
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
Dabi Shmuel
Loewrigkeit Peter
Ridout & Maybee Llp
Witco Chemical Corporation
LandOfFree
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