C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/5504
C08L 63/00 (2006.01) C08G 18/08 (2006.01) C08G 18/10 (2006.01) C08G 18/28 (2006.01) C08L 75/04 (2006.01) C08L 75/12 (2006.01)
Patent
CA 2021238
Mo3238CIP PU-285-CIP AQUEOUSLY DISPERSED BLENDS OF EPOXY RESINS AND BLOCKED URETHANE PREPOLYMERS ABSTRACT OF THE DISCLOSURE The present invention is directed to an aqueously dispersed, ambient temperature curable composition containing a) an epoxy resin which is rendered water-dispersible by chemically incorporated emulsifiers and/or by being admixed with external emulsifiers and b) an isocyanate-terminated prepolymer i) which is rendered water-dispersible by chemically incorporated emulsifiers and/or by being admixed with external emulsifiers, ii) which is prepared from a mixture containing a polyisocyanate and a compound having a molecular weight of at least 500 and at least two hydroxyl groups and iii) wherein the isocyanate groups are blocked with a phenolic compound. The present invention is also directed to a process for preparing polyurethanes by reacting the above blends with polyamines at ambient or elevated temperature and to the polyurethanes produced therefrom. Mo3238CIP
Markusch Peter H.
Squiller Edward P.
Markusch Peter H.
Miles Inc.
Squiller Edward P.
Swabey Ogilvy Renault
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