| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an acrylic resin composition for an injection-molded light guide plate excellent in mold release in the production of an injection-molded light guide plate having an embossed face and fine grooves on the surface and to provide a light guide plate free from fine chips and fine crazes. <P>SOLUTION: The acrylic resin composition for the injection-molded light guide plate comprises 100 pts.mass copolymer comprising 90 to 99.5 mass% methyl methacrylate units and 0.5 to 10 mass% methyl acrylate units and/or ethyl acrylate units and having a reduced viscosity of 40 to 55 ml/g as measured in chloroform at 25°C and a melt flow rate of 5 to 15, 0.15 to 0.5 pt.mass 16 to 18C higher alcohol, and 0 to 0.1 pt.mass 20 to 35C paraffin. <P>COPYRIGHT: (C)2007,JPO&INPIT |
