| 摘要 |
PROBLEM TO BE SOLVED: To provide a methacrylic resin composition moldable by thermoplasticity, giving high chemical crack resistance and mechanical strength, also excellent in surface hardness; and its molding.SOLUTION: This methacrylic resin composition includes 100 pts.mass of a methacrylic resin (A) comprising 80-98.5 mass% of methacrylic ester monomer unit and 1.5-20 mass% of at least one kind of other vinyl monomer unit; and 0.01-10 pts.mass of a tetrafluoroethylene resin (B) satisfying conditions of (i) number-average molecular weight (Mn) of 5,000 or more and less than 500,000, and (ii) average particle diameter of 0.5-8 μm. |
