发明公开
EP2746307A1 Polyvinylidene fluoride resin expanded beads, method for producing polyvinylidene fluoride resin expanded beads, and molded articles of polyvinylidene fluoride resin expanded beads
有权
聚偏氟乙烯系树脂发泡粒子，聚偏氟乙烯系树脂发泡粒子的制造方法以及聚偏氟乙烯系树脂发泡粒子的成型体
- 专利标题： Polyvinylidene fluoride resin expanded beads, method for producing polyvinylidene fluoride resin expanded beads, and molded articles of polyvinylidene fluoride resin expanded beads
- 专利标题（中）： 聚偏氟乙烯系树脂发泡粒子，聚偏氟乙烯系树脂发泡粒子的制造方法以及聚偏氟乙烯系树脂发泡粒子的成型体
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申请号： EP13197140.0申请日： 2013-12-13
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公开(公告)号： EP2746307A1公开(公告)日： 2014-06-25
- 发明人: Shinohara, Mitsuru , Oikawa, Masaharu
- 申请人： JSP CORPORATION
- 申请人地址： 4-2, Marunouchi 3-chome, Chiyoda-ku Tokyo 100-0005 JP
- 专利权人： JSP CORPORATION
- 当前专利权人： JSP CORPORATION
- 当前专利权人地址： 4-2, Marunouchi 3-chome, Chiyoda-ku Tokyo 100-0005 JP
- 代理机构： Wagner, Matthias
- 优先权： JP2012277245 20121219
- 主分类号： C08F214/22
- IPC分类号： C08F214/22 ; C08J9/18 ; C08L27/16
摘要：
There is provided polyvinylidene fluoride resin expanded beads which have a high expansion ratio, do not shrink easily, and are capable of obtaining a molded article of the expanded beads that is excellent in mold reproducibility and dimensional stability. The polyvinylidene fluoride resin expanded beads include a polyvinylidene fluoride resin as a base resin, in which a flexural modulus of the polyvinylidene fluoride resin is 450 MPa or more, a melt flow rate (MFR) of the polyvinylidene fluoride resin is 1 g/10 min or more at 230°C and 2.16 kg load, an apparent density of the expanded beads is 25 to 150 g/L, and a closed cell content of the expanded beads is 80% or more.
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