Composite open-cell foam structure

Details Composite open-cell foam structure Composite open-cell foam structure

1989-03-31

1990-09-18

Van Balen, William J.

Stock material or miscellaneous articles

Pile or nap type surface or component

Particular backing structure or composition

1563073, 4283171, 4283202, 4283227, 521 54, B32B 326

Patent

active

049577980

ABSTRACT:
A carpet underlay cushion structure is provided having a carrier layer of an open-cell, resilient polyurethane foam naterial substantially completely impregnated with a latex such as a non-carboxylated styrene-butadiene rubber or natural rubber, the foam material further having a woven substrate adhered thereto, the impregnated foam material being dried and cured to form a foamed, open-cell, resilient composite cushion structure wherein the open cells thereof partially comprise the carrier layer of polyurethane foam material.

REFERENCES:
patent: 4008350 (1977-02-01), Crawford
patent: 4042746 (1977-08-01), Hofer
patent: 4169184 (1979-09-01), Pufahl
patent: 4224374 (1980-09-01), Priest
patent: 4239571 (1980-12-01), Cobb
patent: 4260688 (1981-04-01), Simon
patent: 4279953 (1981-07-01), Barden et al.
patent: 4288559 (1981-09-01), Illger et al.
patent: 4455396 (1984-06-01), Al-Tabaqchall et al.
patent: 4547526 (1985-10-01), Al-Tabaqchall et al.

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