C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/12 (2006.01) C08G 18/32 (2006.01) C08G 18/48 (2006.01) C08G 18/66 (2006.01) C09D 175/08 (2006.01)
Patent
CA 2637503
An isocyanate-terminated prepolymer having an isocyanate group content of about 2 to 7% by weight is provided. The prepolymer comprises the reaction product of a) at least one polyether diol having a number average molecular weight of 3000 to 5000; b) at least one active-hydrogen containing material having a number average molecular weight of 200 to 700 and containing two or three hydroxyl groups and optionally one carboxy group; c) at least one hydroxyalkane carboxylic acid having a number average molecular weight of less than about 200; d) optionally, a polyether monol having a number average molecular weight between 400-3,000; e) optionally, a polyether triol having a number average molecular weight of 3,000 to 9,000; and f) an aliphatic and/or cycloaliphatic diisocyanate.
Berezkin Yuliya
Crawford Derek L.
Gindin Lyubov K.
Pethiyagoda Dinesh
Schmitt Peter D.
Bayer Materialscience Llc
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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