Preparation of fire retardant flexible polyester based polyureth

Details Preparation of fire retardant flexible polyester based polyureth Preparation of fire retardant flexible polyester based polyureth

1986-10-24

1987-12-08

Anderson, Harold D.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521130, 521131, 521112, 521127, 521129, C08G 1814, C08G 1816, C08G 1830

Patent

active

047119101

ABSTRACT:
Fire retardant flexible polyurethane foams are prepared with reduced scorch and discoloration by the addition of a stabilizing amount of from about 1 to about 12 parts by weight of a cyclic alkylene carbonate to the formulation, based on the weight of the polyester polyol employed, without affecting the fire retardancy of the foam product.

REFERENCES:
patent: 3772218 (1973-11-01), Lamplugh et al.
patent: 4071482 (1978-01-01), Hopkins, Jr. et al.
patent: 4621105 (1986-11-01), Statton et al.
Saunders and Frisch, Polyurethane Chemistry and Technology, John Wiley & Sons, N.Y., 1964, pp. 1-3, 5-6, and 195, TP986P6S3.

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