Method for the preparation of highly elastic forms of reduced co

Details Method for the preparation of highly elastic forms of reduced co Method for the preparation of highly elastic forms of reduced co

1991-04-15

1993-02-02

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521114, 521115, 521164, 521169, 521172, 521174, 521175, C08G 1848

Patent

active

051838303

ABSTRACT:
A method for the preparation of highly elastic foams of reduced compression hardness and having urethane groups is disclosed, in which the reaction of the polyurethane-forming materials is carried in the presence of 0.01 to 5% by weight, based on the polyol, of a compound, which has at least one polyoxyalkylene group and at least one anionic group in the molecule. The use of fluorocarbons to decrease the compression hardness can reduced appreciably by the use of this compound.

REFERENCES:
patent: 4208485 (1980-06-01), Nahta
patent: 4235811 (1980-11-01), Schultz et al.
patent: 4751251 (1988-06-01), Thornsberry
patent: 4764541 (1988-08-01), Brasington
patent: 4990373 (1991-02-01), Kittle

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