05-01-2017 дата публикации
Номер: US20170001414A1
Принадлежит:
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. 1. 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; andan adhesive layer disposed on a first surface of the base layer between the backing layer and the base layer; anda cap layer comprising polyurethane.21. The laminate of claim. , wherein the copolymer is a terpolymer comprising polyamide , polyester and polyether or any combination thereof.3. The laminate of claim 2 , wherein the base layer includes the polyurethane/terpolymer as a sub layer in combination with at least one other sub layer selected from a primer sub layer claim 2 , a fiber sub layer and a sealing sub layer.4. The laminate of claim 3 , wherein the fiber sub layer comprises at least one of glass claim 3 , aramid claim 3 , carbon claim 3 , PVA claim 3 , hemp claim 3 , jute claim 3 , organic fiber claim 3 , synthetic fiber disposed in a thermoset or thermoplastic resin5. The laminate of claim 1 , wherein the adhesive layer comprises thermoplastic polyurethane.6. The laminate of claim 1 , wherein the adhesive layer comprises by weight claim 1 , from about 50% to about 70% polymer and from about 30% to about 50% flame retardant additive.7. The ...
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