Strippalble sponge cushion underlay for a surface covering, such as carpeting
AssigneeJames River Corporation
InventorsRoy D. Goodwin, Henry S. Ostrowski, Gary J. Davis
Life of this patent
Estimating the term…
Abstract
A sponge cushion material is suitable for use as a carpet underlay. The sponge cushion has a cellular layer bonded to two nonwoven textile layers which can delaminate. The carpet is adhesively bonded to the cellular layer and one of the textile layers is adhesively bonded to a floor. The carpet can be easily removed by pulling it away from the floor so that the two textile layers delaminate and one of the textile layers remains bonded to the floor.
Claims35
A laminate comprising:
- (A) a solid, flexible, resilient, cellular layer having a top surface for bonding to an underside of a surface covering and an opposing bottom surface;
- (B) a solid, flexible, non-strippable first layer having opposing first and second surfaces, wherein the first surface of the first layer is adhered to the bottom surface of the cellular layer;
- (C) a solid, flexible, second layer adhered to the second surface of the first layer;
- and
- (D) a surface covering adhesively bonded to the top surface of the cellular layer;
- wherein, when the second layer of the laminate is secured to a solid support and the surface covering is pulled away from the solid support, the second layer adheres to the support and the surface covering, cellular layer, and first layer are strippable from the second layer.
A cushion underlay for a carpet, wherein the cushion underlay comprises:
- (A) a solid, flexible, resilient, cellular layer having a top surface for bonding to an underside of a carpet and an opposing bottom surface;
- (B) a self-supporting, flexible, nonwoven, scrim textile layer having an open mesh and opposing first and second surfaces, wherein the first surface of the scrim layer is adhered to the bottom of the cellular layer;
- (C) a self-supporting, flexible, nonwoven, textile web having a denser mesh than the open mesh of the scrim layer, wherein said web is adhesively bonded to the second surface of the scrim layer;
- wherein, when the scrim layer is secured to solid support and the cushion underlay is pulled away from the solid support, the scrim layer is strippable from the textile web without tearing the cellular layer, but the cellular layer is not strippable from the scrim layer.
Method of installing a strippable surface covering and cushion underlay on a solid support, wherein the method comprises:
- (A) providing a cushion underlay for the surface covering, wherein the cushion underlay comprises
- (1) a solid, flexible, resilient, cellular layer having a top surface for bonding to an underside of a surface covering and an opposing bottom surface;
- (2) a solid, flexible, non-strippable first layer haveing opposing first and second surfaces, wherein the first surface of the first layer is adhered to the bottom surface of the cellular layer;
- and
- (3) a solid, flexible, second layer adhered to the second surface of the first layer;
- (B) adhesively securing the cushion underlay to a solid support;
- and
- (C) adhesively securing the surface covering to the top surface of the cellular layer;
- wherein the second layer adheres to the support, and the surface covering, cellular layer and first layer are strippable from the second layer when the surface covering is pulled away from the support.
Method as claimed in calim 34, wherein the first layer is comprised of a nonwoven spunbonded nylon material and the second layer is comprised of nonwoven web of carded rayon fibers.
Dependencies are inferred from the claim text.