Polyurethane based rigid flooring laminate
AssigneeSchneller LLC
InventorsRobert G. Pierson, Henry C. Ashton, Robert L. Gray, Gilles Le Du
Life of this patent
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Abstract
The laminate according to the invention is a multiple layer structure and contains predominantly urethane-based polymeric materials in the cap and base layers thereof, with no significant amount of PVC. As such, under combustion conditions, the laminate releases substantially no harmful halogen-based bases, such as HCl or other toxic gases, and exhibits toxicity and smoke generation parameters well below acceptable industry standards.
Claims20
A laminate structure comprising:
- a backing layer comprising, by weight, from about 20% to about 80% fiber reinforcement and from about 80% to about 20% thermoset or thermoplastic polymer selected from acrylic, polyvinylester, polyester, phenolic, epoxy, polysulfone, polyethersulfone and mixtures thereof;
- a base layer comprising polyurethane-based material combined with a copolymer of polyamide, polyether, polyester, polyether, polyimide, polyphenylene oxide, acrylic and polystyrene;
- and
- an adhesive layer disposed on a first surface of the base layer between the backing layer and the base layer;
- and
- a cap layer comprising polyurethane.
The laminate of claim. 1, wherein the copolymer is a terpolymer comprising polyamide, polyester and polyether or any combination thereof.
A laminate structure comprising:
- a backing layer comprising, by weight, from about 40% to about 50% polyester, and from about 50% to about 60% by weight fiber reinforcement;
- a base layer comprising a sub-layer containing polyurethane in combination with a copolymer of at least two of polyamide, polyether, polyester, polyether, polyimide, polyphenylene oxide and polystyrene;
- a first adhesive layer disposed between the backing layer and the base layer, the adhesive layer comprising a thermoplastic polyurethane;
- a cap layer disposed on a surface of the base layer opposite the backing layer and comprising a polyurethane-based material;
- and
- a second adhesive layer disposed between the base layer and the cap layer, wherein the laminate exhibits abrasion resistance of less than 400 mg according to ISO 9352.
A laminate structure comprising:
- a backing layer comprising, by weight from about 20% to about 80% fiber reinforcement and from about 80% to about 20% thermoset or thermoplastic polymer selected from acrylic, polyvinylester, polyester, phenolic, epoxy, polysulfone, polyethersulfone and mixtures thereof;
- a base layer comprising polyurethane-based material;
- and
- an adhesive layer disposed on a first surface of the base layer between the backing layer and the base layer;
- and a cap layer comprising polyurethane.
A laminate structure comprising:
- a backing layer comprising, by weight, from about 40% to about 50% polyester, and from about 50% to about 60% by weight fiber reinforcement;
- a base layer comprising a sub-layer containing polyurethane;
- a first adhesive layer disposed between the backing layer and the base layer, the adhesive layer comprising a thermoplastic polyurethane;
- a cap layer disposed on a surface of the base layer opposite the backing layer and comprising a polyurethane-based material;
- and
- a second adhesive layer disposed between the base layer and the cap layer, wherein the laminate exhibits abrasion resistance of less than 400 mg according to ISO 9352.
Dependencies are inferred from the claim text.