Aliphatic polyurea elastomers

Details Aliphatic polyurea elastomers Aliphatic polyurea elastomers

1991-06-04

1992-11-10

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, 524874, 528 76, C08G 1814

Patent

active

051623889

ABSTRACT:
An aliphatic polyurea elastomer is disclosed. The elastomer comprises an (A) and a (B) component. The (A) component includes an aliphatic isocyanate. The (B) component includes an amine terminated polyoxyalkylene polyol and a chain extender including an aliphatic spray polyurea elastomer comprising an (a) component which includes an aliphatic isocyanate and a (b) component which includes (1) an amine terminated polyoxyalkylene polyol and (2) a chain extender including cis-1,4-diaminocyclohexane, isophoronediamine, m-xylenediamine, 4,4'-methylenedicyclohexylamine, methanediamine, 1,4-diaminoethylcyclohexane and substituted derivatives thereof. Preferably, the chain extender includes cis-1,4-diaminocyclohexane, isophoronediamine or mixtures thereof.

REFERENCES:
patent: 4705814 (1987-11-01), Grigsby

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