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Invention Publication
CN106715554A 发泡性甲基丙烯酸甲酯系树脂粒子、预发泡粒子、发泡成型体和消失模型 有权

  • Patent Title: 发泡性甲基丙烯酸甲酯系树脂粒子、预发泡粒子、发泡成型体和消失模型
  • Patent Title (English): Expandable methyl methacrylate resin particles, pre-expanded particles, expansion molded article, and evaporative pattern
  • Application No.: CN201580050655.2
    Application Date: 2015-09-14
  • Publication No.: CN106715554A
    Publication Date: 2017-05-24
  • Inventor: 铃木基理人 , 田村充宏 , 逸见龙哉
  • Applicant: 株式会社钟化
  • Applicant Address: 日本大阪府
  • Assignee: 株式会社钟化
  • Current Assignee: 株式会社钟化
  • Current Assignee Address: 日本大阪府
  • Agency: 北京集佳知识产权代理有限公司
  • Agent 李书慧; 金世煜
  • Priority: 2014-192421 20140922 JP
  • International Application: PCT/JP2015/076059 2015.09.14
  • International Announcement: WO2016/047490 JA 2016.03.31
  • Date entered country: 2017-03-20
  • Main IPC: C08J9/20
  • IPC: C08J9/20 ;  B22C7/02
发泡性甲基丙烯酸甲酯系树脂粒子、预发泡粒子、发泡成型体和消失模型
Abstract:
本发明的课题提供一种着火时不易产生煤烟的甲基丙烯酸甲酯系发泡成型体，上述发泡成型体能够以高倍率发泡，相对于变形不易断裂。本发明可通过一种发泡性甲基丙烯酸甲酯系树脂粒子达成，该发泡性甲基丙烯酸甲酯系树脂粒子是将丙烯酸系单体100重量份与二官能性单体0.05重量份～0.15重量份聚合而成的，该丙烯酸系单体由甲基丙烯酸甲酯90重量％～98重量％和丙烯酸的C2‑8烷基酯2重量％～10重量％构成。
Abstract(English):

The purpose of the present invention is to provide a methyl methacrylate expansion molded article that does not readily generate soot and smoke when ignited, wherein the expansion molded article can expand to a high multiple and does not readily break in response to deformation. The aforementioned purpose is achieved by expandable methyl methacrylate resin particles, wherein the expandable methyl methacrylate resin particles are obtained by polymerizing 0.05-0.15 parts by weight of a bifunctional monomer and 100 parts by weight of an acrylic monomer comprising 90-98 wt% of methyl methacrylate and 2-10 wt% of a C2-8 alkyl ester of acrylic acid.

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