초록 ▼

Adhere a polymer blend facer to at least one, preferably both, primary surfaces of a foam panel or board to provide a laminate with a combination of enhanced strength and resistance to bending relative to the foam panel. The polymer blend facer, prepared from a combination of an alkenyl aromatic pol

Adhere a polymer blend facer to at least one, preferably both, primary surfaces of a foam panel or board to provide a laminate with a combination of enhanced strength and resistance to bending relative to the foam panel. The polymer blend facer, prepared from a combination of an alkenyl aromatic polymer and an interpolymer of ethylene, an alkenyl aromatic monomer or hindered aliphatic or cycloaliphatic vinylidene monomer, provides an added benefit in terms of greater recyclability into a foam panel relative to biaxially oriented polypropylene. The polymer blend facer may be a film or a thin foam sheet.

대표청구항 ▼

1. A laminated insulating foam board comprising:a panel of a plastic foam material, the panel having at least two primary surfaces; and at least one facer adhered to a primary surface of the panel, the facer comprising a polymer blend containing from 98 to 30 percent by weight of an alkenyl aromatic

1. A laminated insulating foam board comprising:a panel of a plastic foam material, the panel having at least two primary surfaces; and at least one facer adhered to a primary surface of the panel, the facer comprising a polymer blend containing from 98 to 30 percent by weight of an alkenyl aromatic polymer, and from 2 to 70 percent by weight of an interpolymer having polymerized therein ethylene, one or more alkenyl aromatic monomers or hindered aliphatic or cycloaliphatic vinylidene monomers, and optionally one or more copolymerizable olefinic monomers that contain from 3 to 20 carbon atoms, both percentages being based on polymer blend weight and totaling 100 weight percent.