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US 11,883,984 B2Granted
Recyclable single polymer floorcovering article
AssigneeMilliken & Company
InventorsDale R. Williams, Joseph Wallen, Ty Grant Dawson, Nils David Sellman, Jr., Daniel Taylor McBride, Joseph R. Royer, John L. Sanchez
Life of this patent
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Abstract
This invention relates to tufted floorcovering articles, including carpet tiles and broadloom carpet. In particular, this invention relates to tufted floorcovering articles made from the family of polymers known as polyester. Specifically, this invention relates to tufted carpet tile products made from polyester. The polyester carpet tiles meet commercial performance specifications and are fully end-of-life recyclable.
Claims16
A polyester floorcovering article comprised of:
- (a) polyester pile yarn;
- (b) a spunbond nonwoven polyester primary backing layer;
- (c) a first layer of polyester hot melt adhesive having a viscosity of 3000 to 10,000 cps at 350° F., wherein the hot melt adhesive is comprised of at least 50 weight % recycled material;
- (d) a second layer of polyester hot melt adhesive having a viscosity that is three to five times higher than the viscosity of layer “c;” and
- (e) a polyester needlepunch nonwoven secondary backing layer.
2 more elements
A floorcovering article comprised of:
- (a) a layer of polyester yarn selected from the group consisting of loop pile, cut pile, or a combination of loop and cut pile;
- (b) a layer of polyester primary backing layer selected from the group consisting of spunbond nonwoven, stitchbonded nonwoven, woven tape, and needlepunch nonwoven;
- (c) a layer of polyester adhesive having a viscosity of 3000 to 10,000 cps at 350° F.;
- (d) a layer of polyester adhesive having viscosity at least two times greater than the viscosity of layer “c;” and
- (e) a layer of polyester secondary backing layer in the weight range of 200 g/m2 to 850 g/m2.
2 more elements
Dependencies are inferred from the claim text.