C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 75/04 (2006.01) C09D 175/04 (2006.01)
Patent
CA 2063937
Mo3593 MD-90-74-CT AQUEOUS POLYURETHANE-UREA DISPERSIONS BASED ON BIS-(4- ISOCYANATOCYCLOHEXYL)-METHANE ENRICHED IN THE TRANS,TRANS ISOMER AND COATINGS OR FILMS PREPARED THEREFROM ABSTRACT OF THE DISCLOSURE The present invention is directed to aqueous polyurethane-urea dispersions wherein the polyurethane-ureas are based on the reaction product of a) an isocyanate component comprising bis-(4-isocyanatocyclo- hexyl)-methane having an average trans,trans isomer content of at least 35% by weight, based on the weight of bis-(4-isocyanatocyclohexyl)-methane with b) an isocyanate-reactive component. The present invention is also directed to the films or coatings prepared from these aqueous polyurethane-urea dispersions. Mo3593
Seneker Stephen D.
Siranovich Stanley F.
Tirpak Robin E.
Venham Lanny D.
Corporation Bayer
de Gagne Jacqueline A.
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