Di(alkylthio)diamine chain extenders for polyurethane...

Details Di(alkylthio)diamine chain extenders for polyurethane... Di(alkylthio)diamine chain extenders for polyurethane...

C - Chemistry, Metallurgy

08

G

402/137

C08G 18/32 (2006.01) C08G 18/10 (2006.01)

Patent

CA 1236947

ABSTRACT DI(ALKYLTHIO)DIAMINE CHAIN EXTENDERS FOR POLYURETHANE ELASTOMERS Polyurethanes and a process for their preparation with aromatic diamines having at least one aromatic ring, one of said at least one aromatic ring having thereon at least two alkylthio substituents and at least one amino substituent. An isocyanate prepolymer may be combined with a diamine chain extender of the invention and cured at suitable processing temperatures to form elastomers with good physical properties.

501632

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