Patent ID: 8119235

Claim:
A multilayer film or sheet comprising a first layer, a second layer, a third layer; and optionally a tie layer, a recycled polymer layer, or both wherein the film or sheet is a thermoformable film or sheet; the first layer is a surface layer and consists essentially of ionomer and a first additive; the second layer comprises a first polymer and a second additive and is in contact with the first layer; the first polymer is ionomer; the third layer is in contact, directly or through the tie layer, with the second layer, and optionally comprises a third additive; the third layer is ethylene copolymer, polyolefin, polyester, polyamide, or polyethylene-ionomer blend; the ethylene copolymer is a copolymer of ethylene and (meth)acrylic acid, (meth)acrylate, alkyl(meth)acrylate, maleic anhydride, or vinyl acetate; the first additive, the second additive, or the third additive is one or more UV stabilizer, UV absorber, antioxidant, thermal stabilizer, anti-stat additive, processing aid, fiber glass, mineral filler, anti-slip agent, plasticizer, nucleating agent, pigment, dye, flake, or mixtures thereof; and the tie layer is selected from a blend of polyethylene, ethylene/α-olefin copolymer, and ethylene elastomer; ethylene vinyl acetate; ethylene (meth)acrylate copolymer; ethylene butyl acrylate copolymer; polyethylene terephthalate and polyethylene terephthalate glycol copolymer resins; maleic anhydride modified polypropylene; copolymers containing anhydride grafts; or mixture thereof.