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Expandable methyl methacrylate resin particles, pre-expanded particles, expanded molded article, and disappearance model
Expandable methyl methacrylate resin particles, pre-expanded particles, expanded molded article, and disappearance model
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机译:可膨胀的甲基丙烯酸甲酯树脂颗粒,预膨胀的颗粒,膨胀的模制品和消失模型
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摘要
The present invention addresses the problem of providing a me thyl methacrylate expanded mold article that rarely generates smoke and soot upon ignition, that can be expanded at a high expansion ra tio, and that is hardly broken upon deformation. The problem is sol ved by an expandable poly methyl methacrylate particle comprising a polymer obtained from 100 parts by weight of an acrylic monomer, a nd not less than 0.05 parts by weight and not more than 0.15 parts b y weight of a polyfunctional monomer, wherein the acrylic monomer c omprises not less than 90% by weight and not more than 98% by weight of methyl methacrylate and not less than 2% by weight and not more than 10% by weight of an C 2-8 alkyl acrylate.
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