Patent ID: 8178619

Claim:
A (meth)acrylic polymer comprising 15 to 65 parts by weight of a polymer (A) having a specific viscosity of 0.90 to 2.00 and containing 70 to 100 weight percent of methyl methacrylate, 0 to 30 weight percent of a (meth)acrylic ester other than methyl methacrylate, and 0 to 10 weight percent of another monomer copolymerizable with these; 20 to 75 parts by weight of a polymer (B) having a specific viscosity of 0.40 or more and less than 0.90 and containing 70 to 100 weight percent of methyl methacrylate, 0 to 30 weight percent of a (meth)acrylic ester other than methyl methacrylate, and 0 to 10 weight percent of another monomer copolymerizable with these; and 1 to 30 parts by weight of a polymer (C) having a specific viscosity of 0.80 to 2.00 and containing 1 to 40 weight percent of methyl methacrylate, 40 to 100 weight percent of a (meth)acrylic ester other than methyl methacrylate, and 0 to 20 weight percent of another monomer copolymerizable with these (the total of the polymer (A), the polymer (B), and the polymer (C) is 100 parts by weight), wherein when the specific viscosity of the polymer (A) is represented as a and the specific viscosity of the polymer (B) is represented as b, a/b is 1.2 to 3.2, and the another monomer does not comprise an aromatic vinyl compound.