3-(hydroxyhydrocarbylsecondary-amino) thiophene 1,1-dioxides...

Details 3-(hydroxyhydrocarbylsecondary-amino) thiophene 1,1-dioxides... 3-(hydroxyhydrocarbylsecondary-amino) thiophene 1,1-dioxides...

C - Chemistry, Metallurgy

08

G

402/137, 403/24

C08G 18/66 (2006.01) C07D 333/48 (2006.01) C07D 333/66 (2006.01) C08G 18/10 (2006.01) C08G 18/38 (2006.01)

Patent

CA 1040787

ABSTRACT OF THE DISCLOSURE chain extended polyurethanes are prepared, using certain 3-(hydroxyhydrocarbylsecondaryamino)thiophene 1, 1-dioxides, some of which are new chemicals. E.g., 3- (2-hydroxypropylamino)tetrahydrothiophene 1,1-dioxide is especially useful as a chain extender for high resiliency, flexible polyurethane foams.

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