发明授权
US08211981B2 Poly(4-methyl-1-pentene) resin composition, film containing same, microporous film, battery separator and lithium ion battery
有权
聚（4-甲基-1-戊烯）树脂组合物，含有它的膜，微孔膜，电池隔膜和锂离子电池
- 专利标题： Poly(4-methyl-1-pentene) resin composition, film containing same, microporous film, battery separator and lithium ion battery
- 专利标题（中）： 聚（4-甲基-1-戊烯）树脂组合物，含有它的膜，微孔膜，电池隔膜和锂离子电池
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申请号： US13054833申请日： 2009-07-29
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公开(公告)号： US08211981B2公开(公告)日： 2012-07-03
- 发明人: Tooru Tanaka , Youhei Houtani , Atsushi Morita
- 申请人： Tooru Tanaka , Youhei Houtani , Atsushi Morita
- 申请人地址： JP Minato-Ku, Tokyo
- 专利权人： Mitsui Chemicals, Inc.
- 当前专利权人： Mitsui Chemicals, Inc.
- 当前专利权人地址： JP Minato-Ku, Tokyo
- 代理机构： Buchanan Ingersoll & Rooney PC
- 优先权： JP2008-199522 20080801; JP2009-003006 20090109
- 国际申请： PCT/JP2009/003594 WO 20090729
- 国际公布： WO2010/013467 WO 20100204
- 主分类号： C08F8/00
- IPC分类号： C08F8/00 ; C08F10/14 ; C08F110/14 ; C08F210/14
摘要：
Disclosed is a poly(4-methyl-1-pentene) resin composition having an excellent balance between micropore formability and toughness, which can sufficiently form fine pores by drawing and does not cause a break during drawing. The poly(4-methyl-1-pentene) resin composition contains 0-90 parts by mass of a 4-methyl-1-pentene homopolymer (A) and 10-100 parts by mass of a 4-methyl-1-pentene copolymer (B) having a structural unit derived from 4-methyl-1-pentene and a structural unit derived from a C2-20 α-olefin other than 4-methyl-1-pentene. The content of the structural unit derived from a C2-20 α-olefin other than 4-methyl-1-pentene is 0.1-2.1% by mass relative to the total amount of the homopolymer (A) and the copolymer (B). The poly(4-methyl-1-pentene) resin composition also contains 0.1-800 ppm of a nucleator (C) relative to the total weight of the homopolymer (A) and the copolymer (B).
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