Polyether-derived polyurethane foam impregnant and method of app

Details Polyether-derived polyurethane foam impregnant and method of app Polyether-derived polyurethane foam impregnant and method of app

1978-11-21

1980-09-23

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

260 297H, 260 297P, 260DIG24, 428311, 428921, 427244, 521 53, 521 54, 521903, 521906, B32B 326, C08L 1302

Patent

active

042243742

ABSTRACT:
A unique substantially non-flammable impregnant for polyether-derived polyurethane foam substrates is disclosed. The impregnant is characterized by a carboxylated neoprene latex and an alumina trihydrate. It can be further characterized by a diammonium hydrogen phosphate, urea, a magnesium-zinc complex, a surfactant and water.
A method for applying the impregnant to the mentioned substrate is also disclosed. That method is characterized by depositing the impregnant on the substrate, impregnating and curing it, and recovering a substantially non-flammable product. That impregnated polyether-derived polyurethane foam product can be configurated as a laminate and adhered to some other substrate. Articles like mattresses and cushions can be advantageously fabricated using the unique impregnant.

REFERENCES:
patent: 3347837 (1967-10-01), Smith
patent: 3651037 (1972-03-01), Snow, Jr.
patent: 3717597 (1973-02-01), Hesskamp
patent: 3839241 (1974-10-01), Harrell, Jr.
patent: 4076878 (1978-02-01), Norby
patent: 4130528 (1978-12-01), Chen
patent: 4172067 (1979-10-01), Benton et al.
patent: 4174420 (1979-11-01), Anolick et al.

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