| abstract |
A methacrylic resin composition having excellent heat resistance in addition to good flame retardancy is provided. A polymerization product of a monofunctional monomer mainly composed of methyl methacrylate, a polyfunctional monomer having at least two double bonds capable of radical polymerization in the molecule, and a heat resistance improving monomer. A methacrylic resin composition containing a coalescence X and a halogenated phosphoric acid ester, wherein each content of the polymer X and the halogenated phosphoric acid ester in the methacrylic resin composition is such that the polymer X and the halogenated phosphoric acid ester The polymer X is 75.0 to 95.0 parts by weight and the halogenated phosphate ester is 5.0 to 25.0 parts by weight based on the total of 100 parts by weight, and the polymer X is the monofunctional monomer. , 79.0 to 99.8% by weight of the monofunctional monomer and 0.1 to 1 to 1% of the polyfunctional monomer based on a total of 100% by weight of the polyfunctional monomer and the heat resistance improving monomer. 0% by weight and monomer for improving heat resistance .1～20.0 those obtained by polymerizing at a ratio of weight%. [Selection figure] None |