JP2003321569A5 - - Google Patents

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Publication number
JP2003321569A5
JP2003321569A5 JP2002126951A JP2002126951A JP2003321569A5 JP 2003321569 A5 JP2003321569 A5 JP 2003321569A5 JP 2002126951 A JP2002126951 A JP 2002126951A JP 2002126951 A JP2002126951 A JP 2002126951A JP 2003321569 A5 JP2003321569 A5 JP 2003321569A5
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JP
Japan
Prior art keywords
microporous membrane
polyethylene
reactive monomer
membrane according
maleic anhydride
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2002126951A
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English (en)
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JP2003321569A (ja
JP4073241B2 (ja
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Publication date
Application filed filed Critical
Priority to JP2002126951A priority Critical patent/JP4073241B2/ja
Priority claimed from JP2002126951A external-priority patent/JP4073241B2/ja
Publication of JP2003321569A publication Critical patent/JP2003321569A/ja
Publication of JP2003321569A5 publication Critical patent/JP2003321569A5/ja
Application granted granted Critical
Publication of JP4073241B2 publication Critical patent/JP4073241B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Claims (5)

  1. ゲル分率が1〜90%であることを特徴とする、反応性モノマー変性ポリエチレン製微多孔膜。
  2. 反応性モノマーが、無水マレイン酸またはマレイン酸であることを特徴とする請求項1記載のポリエチレン製微多孔膜。
  3. 無水マレイン酸またはマレイン酸変性率が0.1〜5.0wt%である請求項2記載のポリエチレン製微多孔膜。
  4. ポリエチレンと反応性モノマーを含む樹脂組成物を、二軸押出機で溶融混練し、その後、加熱処理することにより変性ポリエチレン化する工程を含む請求項1〜3のいずれかに記載の微多孔膜の製造方法。
  5. 請求項1〜3のいずれかに記載の微多孔膜を用いた電池用セパレータ。
JP2002126951A 2002-04-26 2002-04-26 ポリエチレン製微多孔膜よりなる電池用セパレータ Expired - Lifetime JP4073241B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002126951A JP4073241B2 (ja) 2002-04-26 2002-04-26 ポリエチレン製微多孔膜よりなる電池用セパレータ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002126951A JP4073241B2 (ja) 2002-04-26 2002-04-26 ポリエチレン製微多孔膜よりなる電池用セパレータ

Publications (3)

Publication Number Publication Date
JP2003321569A JP2003321569A (ja) 2003-11-14
JP2003321569A5 true JP2003321569A5 (ja) 2005-09-22
JP4073241B2 JP4073241B2 (ja) 2008-04-09

Family

ID=29541214

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002126951A Expired - Lifetime JP4073241B2 (ja) 2002-04-26 2002-04-26 ポリエチレン製微多孔膜よりなる電池用セパレータ

Country Status (1)

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JP (1) JP4073241B2 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024091076A1 (ko) * 2022-10-27 2024-05-02 주식회사 엘지에너지솔루션 전기화학소자용 분리막 기재 및 이를 포함하는 분리막

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06505756A (ja) * 1990-09-20 1994-06-30 サイマット リミテッド ポリマー膜
JPH11144700A (ja) * 1997-11-06 1999-05-28 Kureha Chem Ind Co Ltd 多孔膜、多孔膜からなる電池用セパレータ、およびその製造方法
JP2000007819A (ja) * 1998-04-21 2000-01-11 Tokuyama Corp 多孔性フィルムおよびその製造方法
JP2001011228A (ja) * 1999-06-30 2001-01-16 Toray Ind Inc 発泡体および発泡体の製造方法

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