Diaminoarylsulfones useful for the preparation of polyurethane e

Details Diaminoarylsulfones useful for the preparation of polyurethane e Diaminoarylsulfones useful for the preparation of polyurethane e

1989-01-10

1990-12-04

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 64, 528 76, 564340, 564440, C08G 1832, C07C32100

Patent

active

049755161

ABSTRACT:
This invention relates to diaminoarylsulfones of the formula ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 are independently C.sub.1 -C.sub.12 alkyl, that are useful as chain extenders in the preparation of polyurethane elastomers.

REFERENCES:
patent: 1939416 (1933-12-01), Schimmelschmidt et al.
patent: 3736350 (1973-05-01), Meckel et al.
patent: 4152510 (1979-05-01), Blahak et al.
patent: 4526905 (1985-07-01), Lucast et al.
patent: 4529746 (1985-07-01), Markovs et al.
patent: 4549007 (1985-10-01), Lin et al.
patent: 4611045 (1986-09-01), Ihrman
patent: 4613704 (1986-09-01), Papenfuhs
C. Hepburn, Polyurethane Elastomers, Applied Science Publishers Ltd., London, New York (1982), pp. 101 to 138.

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