Polyurea elastomers made using polyoxyalkylene tetra-or higher f

Details Polyurea elastomers made using polyoxyalkylene tetra-or higher f Polyurea elastomers made using polyoxyalkylene tetra-or higher f

1992-02-21

1993-02-23

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521163, 521167, 528 60, 528 61, 528 66, 528 76, 528 77, C08G 1814

Patent

active

051890755

ABSTRACT:
Polyurea elastomers, made using low molecular weight polyoxyalkylene polyamines, like aminated, propoxylated .alpha.-methyl glucoside, as chain extenders for reactions of polyoxyalkylene polyamine with polyisocyanate, have improved spray and foam properties, including faster cure and foam stability.

REFERENCES:
patent: 3654370 (1972-04-01), Yeakey
patent: 4732919 (1988-03-01), Grigsby, Jr. et al.
U.S. Patent Application Serial No. 750,030 filed Aug. 26, 1991, (Primeaux et al.).
U.S. Patent Application Serial No. 652,954 filed Feb. 8, 1991 (Primeaux).
D. J. Primeaux II--"Spray Polyurea, Versatile High Performance Elastomer for the Polyurethane Industry", Proceedings of the SPI 32nd Annual Technical/Marketing Conference, pp. 126-130, Oct. 1989.
D. J. Primeaux II--"Sprayed Polyurea Elastomers Offer Superior Performance", UTECH'90, pp. 189-194, Apr. 1990.

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