C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
260/455.3
C08G 18/32 (2006.01) C08G 18/50 (2006.01) C08G 18/76 (2006.01) C08G 18/80 (2006.01)
Patent
CA 2006158
Mo3154 PU-273D LIQUID ISOCYANATE PREPOLYMERS ABSTRACT OF THE DISCLOSURE The present invention is directed to a liquid, storage-stable isocyanate prepolymer having an isocyanate group content of from 3 to 30% by weight, prepared by reacting (i) a methyl substituted diisocyanato diphenyl- methane with ii) a polyamine of the structure Image where R represents an m-valent residue obtained by the removal of m-functional groups from a compound having m-functional groups and having a molecular weight of from 76 to about 10,000, Image Image Image X represents -O-, , ,-S-, or R1 represents hydrogen or an inert substituent, R2 represents hydrogen, a C1 to C5 alkyl group or a phenyl group, n is 1 or 2, and m is an integer of from 2 to 8. Mo3154
Miles Inc.
Slack William E.
Swabey Ogilvy Renault
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