Patent ID: 6908670

Claim:
A laminated extruded resin sheet comprising a methyl methacrylate resin produced by laminating resin layers (B) on both surfaces of a resin layer (A) by a multilayer-extrusion molding method, the resin layer (A) (i) consisting of a methyl methacrylate resin, (ii) consisting of a methyl methacrylate resin and additive wherein said additive is selected from the group consisting of a light diffusing agent, a dye, optical stabilizer, ultraviolet absorber, antioxidant, releasing agent, flame retardant agent anti-electrostatic agent, gad combinations thereof, or (iii) consisting of a methyl methacrylate resin and from 3 to 50 parts by weight of a rubber-containing polymer uniformly dispersed in 100 parts by weight of the methyl methacrylate resin, and optionally said additive, and the resin layer (B) being made by dispersing uniformly 1 to 50 parts by weight of insoluble methyl methacrylate resin particles having a weight-average particle size of 1.0 to 33 μm based on 100 parts by weight of a base resin comprising a methyl methacrylate resin, said insoluble methyl methacrylate resin particles comprising 50% or more by weight of methyl methacrylate, and wherein the insoluble methyl methacrylate particles are obtained by a one-stage polymerization of a monomer composition containing 50% by weight or more methyl methacrylate.