Mitsubishi Gas Chemical Company, Inc.

Mgc Filsheet Co., Ltd.

Kosei Hino

Takeshi Onishi

Toshinari Aoki

Osamu Kakinoki

Hidetaka Shimizu

Hirohiko Aikawa

A synthetic resin laminate is excellent in shape stability in high-temperature high-humidity environments and in surface hardness and usable for a transparent substrate material or protection material. A synthetic resin laminate includes a substrate layer containing a polycarbonate (B); and a resin layer laminated on one or both surfaces of the substrate layer, the resin layer containing a resin (A) that contains a (meth)acrylate copolymer (a1) and a polycarbonate (a2); wherein (a1) is a (meth)acrylate copolymer composed of 5 to 80% by mass of an aromatic (meth)acrylate unit (a11) and 20 to 95% by mass of a methyl methacrylate unit (a12); (a2) is a polycarbonate containing a constituent unit represented by formula [1]; and the ratio of (a1) with respect to the resin (A) is 5 to 55% by mass, and the ratio of (a2) with respect to the resin (A) is 95 to 45% by mass.

Synthetic resin laminate

The present invention has an object of providing a synthetic resin laminate that is excellent in shape stability against a high temperature and high humidity environment, surface hardness and the like. The above object is achieved by a synthetic resin laminate, comprising a substrate layer (B) containing polycarbonate; and a resin layer (A) laminated on one or both of two surfaces of the resin layer (B), the resin layer (A) containing 5 to 55% by mass of (meth)acrylate copolymer (C) and 95 to 45% by mass of polycarbonate (D), wherein the (meth)acrylate copolymer (C) contains an aromatic (meth)acrylate unit (c1) and a methyl methacrylate unit (c2) at a mass ratio (c1/c2) of 5-80/20-95, and the (meth)acrylate copolymer (C) has a mass-average molecular weight of 5,000 to 30,000; and the polycarbonate (D) has a mass-average molecular weight of 21,000 to 40,000.

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Kanagawa, Japan

Kosei Hino