Soft, low density flexible polyurethane foam

Details Soft, low density flexible polyurethane foam Soft, low density flexible polyurethane foam

1994-09-23

1996-03-19

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521137, 521163, 521176, C08G 1810, C08G 1812

Patent

active

055004520

ABSTRACT:
A flexible polyurethane foam formulation comprising a first polyol, a second polyol, an unhindered primary diamine or its corresponding carbamate, a diol, water, at least one catalyst, a foam stabilizer and isocyanate is disclosed. No auxiliary blowing agent is required. The resulting soft foams have densities of less than about 2 pcf and 25% IFD values of less than about 10 pounds/50 sq. inches.

REFERENCES:
patent: 4421872 (1983-12-01), Buthe et al.
patent: 4883825 (1989-11-01), Westfall et al.

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