JP2002012695A5 - - Google Patents

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Publication number
JP2002012695A5
JP2002012695A5 JP2000199861A JP2000199861A JP2002012695A5 JP 2002012695 A5 JP2002012695 A5 JP 2002012695A5 JP 2000199861 A JP2000199861 A JP 2000199861A JP 2000199861 A JP2000199861 A JP 2000199861A JP 2002012695 A5 JP2002012695 A5 JP 2002012695A5
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JP
Japan
Prior art keywords
solvent
thermoplastic resin
producing
microporous
membrane
Prior art date
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JP2000199861A
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English (en)
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JP4798730B2 (ja
JP2002012695A (ja
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Application filed filed Critical
Priority claimed from JP2000199861A external-priority patent/JP4798730B2/ja
Priority to JP2000199861A priority Critical patent/JP4798730B2/ja
Priority to TW090115545A priority patent/TW539705B/zh
Priority to KR10-2002-7017436A priority patent/KR100524110B1/ko
Priority to US10/311,806 priority patent/US8394306B2/en
Priority to CNB018115667A priority patent/CN1233709C/zh
Priority to EP01945665.6A priority patent/EP1300436B1/en
Priority to PCT/JP2001/005575 priority patent/WO2002002678A1/ja
Publication of JP2002012695A publication Critical patent/JP2002012695A/ja
Publication of JP2002012695A5 publication Critical patent/JP2002012695A5/ja
Publication of JP4798730B2 publication Critical patent/JP4798730B2/ja
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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【特許請求の範囲】
【請求項１】 熱可塑性樹脂と溶剤(A)とを溶融混練して得られた溶液を押し出し、冷却して得られたゲル状成形物から残存する前記溶剤(A)を除去する熱可塑性樹脂微多孔膜の製造方法において、前記溶剤(A)を、これと異なる溶剤を用いて二段階以上の洗浄工程により除去し、そのうち少なくとも第一段階の工程で沸点が100℃以上かつ引火点が０℃以上の非水系溶剤(B)を用いることを特徴とする熱可塑性樹脂微多孔膜の製造方法。
【請求項２】 請求項１に記載の熱可塑性樹脂微多孔膜の製造方法において、ゲル状成形物を延伸する前及び／又は延伸した後に、残存する溶剤(A)を除去することを特徴とする熱可塑性樹脂微多孔膜の製造方法。
【請求項３】 請求項１又は２に記載の熱可塑性樹脂微多孔膜の製造方法において、前記溶剤(A)を除去する二段階以上の洗浄工程中の最終段階の工程で、オゾン破壊性が無く、かつ沸点が100℃以下の溶剤(C)で処理することを特徴とする熱可塑性樹脂微多孔膜の製造方法。
JP2000199861A 2000-06-30 2000-06-30 熱可塑性樹脂微多孔膜の製造方法 Expired - Lifetime JP4798730B2 (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2000199861A JP4798730B2 (ja) 2000-06-30 2000-06-30 熱可塑性樹脂微多孔膜の製造方法
TW090115545A TW539705B (en) 2000-06-30 2001-06-27 Process for preparing heat curable resin micro-porous film
CNB018115667A CN1233709C (zh) 2000-06-30 2001-06-28 热塑性树脂微多孔膜的制造方法
US10/311,806 US8394306B2 (en) 2000-06-30 2001-06-28 Method for producing microporous thermoplastic resin membrane
KR10-2002-7017436A KR100524110B1 (ko) 2000-06-30 2001-06-28 열가소성수지 미세다공막의 제조방법
EP01945665.6A EP1300436B1 (en) 2000-06-30 2001-06-28 Method for producing thermoplastic resin micro-porous film
PCT/JP2001/005575 WO2002002678A1 (en) 2000-06-30 2001-06-28 Method for producing thermoplastic resin micro-porous film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000199861A JP4798730B2 (ja) 2000-06-30 2000-06-30 熱可塑性樹脂微多孔膜の製造方法

Publications (3)

Publication Number Publication Date
JP2002012695A JP2002012695A (ja) 2002-01-15
JP2002012695A5 true JP2002012695A5 (ja) 2007-08-16
JP4798730B2 JP4798730B2 (ja) 2011-10-19

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ID=18697808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000199861A Expired - Lifetime JP4798730B2 (ja) 2000-06-30 2000-06-30 熱可塑性樹脂微多孔膜の製造方法

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JP (1) JP4798730B2 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4746771B2 (ja) * 2001-06-19 2011-08-10 東レ東燃機能膜合同会社 ポリオレフィン微多孔膜の製造方法
JP4634192B2 (ja) * 2005-03-10 2011-02-16 日東電工株式会社 多孔質膜の製造方法
US8426553B2 (en) 2007-12-14 2013-04-23 Toray Battery Separator Film Co., Ltd. Method for removing diluent from a polymer extrudate, and its applications
US8426070B2 (en) 2007-12-14 2013-04-23 Toray Battery Separator Film Co., Ltd. Method for removing diluent from an extrudate of a polymer solution

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4033246B2 (ja) * 1997-10-23 2008-01-16 東燃化学株式会社 高透過性ポリオレフィン微多孔膜の製造方法

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