Resin laminates
AssigneeMitsubishi Pretrochemical Company Limited
InventorsHiroyuki Sato, Tetsuji Kakizaki
Life of this patent
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Abstract
A resin laminate containing: a layer (Layer A) of a modified ethylene/vinyl acetate copolymer resin obtained by the graft copolymerization of a vinyl acetate monomer onto an ethylene/vinyl acetate copolymer having a vinyl acetate content of 5-50% by weight, the modified ethylene/vinyl acetate copolymer resin having an MFR of 0.5 to 30 g/10 min. and a total vinyl acetate content of 20-80% by weight; and a layer (Layer B) of at least one thermoplastic resin selected from a styrene resin, an acrylic resin, a chlorine-containing resin, a polycarbonate resin and a thermoplastic polyester resin.
Claims9
A resin laminate comprising:
- a layer (Layer A) of a modified ethylene/vinyl acetate copolymer resin obtained by the graft copolymerization of a vinyl acetate monomer onto an ethylene/vinyl acetate copolymer having a vinyl acetate content of 5-50% by weight, said modified ethylene/vinyl acetate copolymer resin having an MFR of 0.5 to 30 g/10 min. and a total vinyl acetate content of 20-80% by weight;
- and
- a layer (Layer B) of at least one thermoplastic resin selected from the group consisting of a styrene resin, an acrylic resin, a chlorine-containing resin, a polycarbonate resin and a thermoplastic polyester resin.
A resin laminate comprising:
- a layer (Layer A) of a modified ethylene/vinyl acetate copolymer resin obtained by the graft copolymerization of a vinyl acetate monomer onto a ethylene/vinyl acetate copolymer having a vinyl acetate content of 5-50% by weight, said modified ethylene/vinyl acetate copolymer resin having an MFR of 0.5 to 30 g/10 min. and a total vinyl acetate content of 20-80% by weight;
- and
- a layer (Layer B) of at least one thermoplastic resin selected from the group consisting of a styrene resin, an acrylic resin, chlorine-containing resin, a polycarbonate resin and a thermoplastic polyester resin,
- wherein the modified ethylene/vinyl acetate copolymer resin is obtained by heating an aqueous suspension containing ethylene/vinyl acetate copolymer particles having a vinyl acetate content of 5-50% by weight, a vinyl acetate monomer and a radical generator to a temperature at which the decomposition of said radical generator does not substantially take place, thereby impregnating said ethylene/vinyl acetate copolymer particles with said vinyl acetate monomer and, then, heating said aqueous suspension to a higher temperature thereby to complete graft polymerization.
Dependencies are inferred from the claim text.