Reactivity stabilization of polymethylene...

Details Reactivity stabilization of polymethylene... Reactivity stabilization of polymethylene...

C - Chemistry, Metallurgy

08

K

C08K 5/15 (2006.01) C08G 18/70 (2006.01) C08G 18/76 (2006.01) C08L 63/00 (2006.01) C08L 75/00 (2006.01)

Patent

CA 2219657

This invention relates to mixtures of polymethylene~ poly(phenyl-isocyanate) blends with epoxides. The addition of the epoxide stabilizes the reactivity of the polyisocyanate blends such that it is no longer dependent on the acidity. It is now possible to form polyurethanes from these mixtures based on polymethylene poly(phenylisocyanate) blends wherein less catalyst is necessary.

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