1,1,1,2-tetrafluoroethane as a blowing agent in integral skin po

Details 1,1,1,2-tetrafluoroethane as a blowing agent in integral skin po 1,1,1,2-tetrafluoroethane as a blowing agent in integral skin po

1995-12-11

1997-08-26

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521131, 521174, 521176, C08J 934

Patent

active

056611900

ABSTRACT:
It has been found that 1,1,1,2-tetrafluoroethane (HFC-134a) may be used alone or in combination with water as blowing agents in flexible integral skin foams. Foams prepared using HFC-134a alone or in combination with water exhibit physical characteristics such as resistance to abrasion and cracking on flex comparable to conventional chlorinated fluorocarbon blown foams. The foams of the present invention are suitable for use in shoe sole applications.

REFERENCES:
patent: 5100922 (1992-03-01), Wada et al.
patent: 5194325 (1993-03-01), Jones
patent: 5250579 (1993-10-01), Smits et al.

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