초록 ▼

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 adh

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.

대표청구항 ▼

A carpet underlay cushion structure comprising: a carrier layer of open-cell, resilient polyurethane foam material, said resilient foam material being substantially completely and uniformly impregnated with a latex containing a polymer wherein said polymer is selected from the group consisting of no

A carpet underlay cushion structure comprising: a carrier layer of open-cell, resilient polyurethane foam material, said resilient foam material being substantially completely and uniformly impregnated with a latex containing a polymer wherein said polymer is selected from the group consisting of non-carboxylated styrene-butadiene rubber, natural rubber, and a combination of styrene-butadiene and natural rubbers; the impregnated foam material being dried after said impregnation to produce a foamed, open-cell, resilient composite cushion structure wherein the open cells thereof partially comprise said carrier layer of polyurethane foam material.