Elastomers based on 4,4'-diisocyanato dicyclohexylmethane enrich

Details Elastomers based on 4,4'-diisocyanato dicyclohexylmethane enrich Elastomers based on 4,4'-diisocyanato dicyclohexylmethane enrich

1991-10-08

1993-05-04

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 59, 528 68, 528 76, 528 77, 528 80, 528 83, 528 85, C08G 1875

Patent

active

052083152

ABSTRACT:
Disclosed herein is an improved elastomer comprising a reaction product of a polyisocyanate and an active hydrogen containing material, the improvement wherein the elastomer is essentially free of a chain extender, wherein the polyisocyanate comprises 4,4'-diisocyanato dicyclohexylmethane containing from about 45 to 100 percent of the trans,trans isomer.

REFERENCES:
patent: 3620905 (1971-11-01), Ahramjian
patent: 3684769 (1972-08-01), Abbott et al.
patent: 3789032 (1974-01-01), Hoeschele
patent: 3857819 (1974-12-01), Mathis
patent: 3997514 (1976-12-01), Kogon
patent: 4337130 (1982-06-01), Ahramjian
patent: 4764543 (1988-08-01), Savina
patent: 4983763 (1991-01-01), Seneker et al.
patent: 5086150 (1992-02-01), Frauendorf et al.
S. W. Wong, K. C. Krisch, C. A. Byrne, D. P. Mack and N. S. Schneider, Adv Urethane, Sci. Technol., 9, 77 (1984).

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