Flexible, flame-retardant polyurethane foams

Details Flexible, flame-retardant polyurethane foams Flexible, flame-retardant polyurethane foams

1986-06-18

1987-10-06

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521103, 521106, 521123, 521132, 521906, C08G 1814

Patent

active

046983694

ABSTRACT:
Flexible polyurethane foams are used for a wide variety of applications including upholstery and bedding. Unfortunately polyurethane foams are inherently flammable. The invention overcomes this problem by using expandable graphite in the polyurethane foam-forming reaction mixture to improve the burning characteristics of the final foam. Expandable graphite is graphite containing one or more exfoliating agents so that considerable expansion will occur at high temperatures.

REFERENCES:
patent: 3574644 (1971-04-01), Olstowski et al.
patent: 4390656 (1983-06-01), Weise et al.
patent: 4438221 (1984-03-01), Fracalossi et al.
Chemical Abstracts, vol. 85, No. 16, Abstract No. 109453F, 1976.

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