KR20060118668A - 액-액 상분리에 의하여 제조된 폴리에틸렌 미세다공막 및그 제조방법 - Google Patents
액-액 상분리에 의하여 제조된 폴리에틸렌 미세다공막 및그 제조방법 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/20—Manufacture of shaped structures of ion-exchange resins
- C08J5/22—Films, membranes or diaphragms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
- H01M50/417—Polyolefins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Polymers & Plastics (AREA)
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- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Cell Separators (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
Claims (9)
- (a) 폴리에틸렌 (성분I) 20∼55중량% 와 상기 성분I과 160~280C 에서 액-액 상분리되는 특성을 가지는 다일루언트(성분II) 80∼45중량%를 함유하는 혼합물을 액-액 상분리 온도 이상에서 용융/혼련/압출하여 압출기내에서 열역학적 단일상으로 만드는 단계;(b) 상기 용융물을 액-액 상분리 온도 범위로 조절된 존을 통과시켜 액-액 상분리를 진행시켜 다이를 통하여 압출하는 단계;(c) 액-액 상분리가 진행되어 압출된 용융물을 시트형태로 성형하는 단계;(d) 상기 시트를 롤 방식 또는 텐터(Tenter) 방식을 포함하는 축차 혹은 동시연신 방법으로 횡방향, 종방향 각 4배 이상, 총 연신비가 25-50배가 되도록 연신하는 단계;(e) 연신된 필름에서 성분II 를 추출하고 건조시키는 단계;(f) 건조된 필름의 잔류응력을 제거하여 필름의 수축률이 종방향, 횡방향 각 5% 이하가 되도록 열고정하는 단계;로 생산되는 폴리에틸렌 미세다공막의 제조방법.
- 제 1항에 있어서,상기 성분I은 중량평균분자량이 2x105 4.5x105 인 폴리에틸렌인 것을 특징으로 하는 폴리에틸렌 미세다공막의 제조방법.
- 제1항에 있어서상기 성분II는 디부틸 프탈레이트(dibutyl phthalate), 디헥실 프탈레이트(dihexyl phthalate), 디옥틸 프탈레이트(dioctyl phthalate) 등의 프탈산 에스테르(phthalic acid ester)류; 디페닐 에테르(diphenyl ether), 벤질 에테르(benzyl ether) 등의 방향족 에테르류; 팔미트산, 스테아린산, 올레산, 리놀레산, 리놀렌산 등의 탄소수 10개에서 20개 사이의 지방산류; 팔미트산알코올, 스테아린산알코올, 올레산알코올 등의 탄소수 10개에서 20개 사이의 지방산알코올류; 팔미트산 모노-, 디-, 또는 트리에스테르, 스테아린산 모노-, 디-, 또는 트리에스테르. 올레산 모노-, 디-, 또는 트리에스테르, 리놀레산 모노-, 디-, 또는 트리에스테르 등의 지방산 그룹의 탄소원소수가 4 내지 26개인 포화 및 불포화 지방산 중 한 개 혹은 두 개 이상의 지방산이, 히드록시기가 1 내지 8개이며, 탄소수가 1 내지 10개인 알코올과 에스테르 결합된 지방산 에스테르류에서 선택되는 하나 이상의 성분인 것을 특징으로 하는 폴리에틸렌 미세다공막의 제조방법.
- 제 3항에 있어서,상기 성분II는 파라핀오일, 광유 또는 왁스에서 선택되는 하나 이상의 성분을 추가로 포함하는 것을 특징으로 하는 폴리에틸렌 미세다공막의 제조방법.
- 제1항에 있어서, 액-액 상분리 상태에서 압출 온도는 액-액 상분리 온도-10C 이하이며, 액-액 상분리상태의 압출기내 체류시간이 30초 이상인 것을 특징으로 하는 폴리에틸렌 미세다공막의 제조방법.
- 제1항에 있어서,상기 시트성형은 수냉/공냉식을 이용한 캐스팅 또는 칼렌더 방법으로 성형하는 것을 특징으로 하는 폴리에틸렌 미세다공막의 제조방법.
- 제1항에 있어서,상기 열고정은 추출/건조된 필름의 결정부분이 10-30 중량% 가 녹는 온도범위에서 열고정하는 단계로서 열고정 시간이 15초~2분인 Tenter 방식으로 열고정하는 것을 특징으로 하는 폴리에틸렌미세다공막의 제조방법.
- 제1항 내지 제7항에서 선택된 어느 한 방법에 의해 제조되는 폴리에틸렌 미세다공막.
- 제8항에 있어서,상기 폴리에틸렌 미세다공막은 기체투과도 (Darcy s permeability constant) 가 2.0x10-5 이상이고 천공강도 (Puncture strength) 가 0.17 N/mm 이상이며 상기 기체투과도와 천공강도를 곱한 값이 0.45x10-5 Darcy.N/mm 이상이고, 횡방향/종방향의 수축률이 각 5% 이하인 것을 특징으로 하는 폴리에틸렌 미세다공막.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050040815A KR100943234B1 (ko) | 2005-05-16 | 2005-05-16 | 액-액 상분리에 의하여 제조된 폴리에틸렌 미세다공막 및그 제조방법 |
EP05765003A EP1882005A4 (en) | 2005-05-16 | 2005-06-18 | MICROPOROUS POLYETHYLENE FILM OBTAINED BY A LIQUID-LIQUID SEPARATION MECHANISM AND PROCESS FOR MAKING THE SAME |
CN2011101541256A CN102276871A (zh) | 2005-05-16 | 2005-06-18 | 通过液-液相分离机理制备的微孔聚乙烯膜及其制备方法 |
JP2008512203A JP5230409B2 (ja) | 2005-05-16 | 2005-06-18 | 液−液相分離により製造されたポリエチレン微細多孔膜及びその製造方法 |
CN2005800510821A CN101223217B (zh) | 2005-05-16 | 2005-06-18 | 通过液-液相分离机理制备的微孔聚乙烯膜及其制备方法 |
PCT/KR2005/001894 WO2006123850A1 (en) | 2005-05-16 | 2005-06-18 | Microporous polyethylene film through liquid-liquid phase separation mechanism and preparing method thereof |
US11/753,174 US8323547B2 (en) | 2005-05-16 | 2007-05-24 | Microporous polyethylene film manufactured according to liquid-liquid phase separation and method of producing the same |
Applications Claiming Priority (1)
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KR1020050040815A KR100943234B1 (ko) | 2005-05-16 | 2005-05-16 | 액-액 상분리에 의하여 제조된 폴리에틸렌 미세다공막 및그 제조방법 |
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KR1020090092705A Division KR101004580B1 (ko) | 2009-09-29 | 2009-09-29 | 액-액 상분리에 의하여 제조된 폴리에틸렌 미세다공막 및 그 제조방법 |
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KR20060118668A true KR20060118668A (ko) | 2006-11-24 |
KR100943234B1 KR100943234B1 (ko) | 2010-02-18 |
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KR1020050040815A KR100943234B1 (ko) | 2005-05-16 | 2005-05-16 | 액-액 상분리에 의하여 제조된 폴리에틸렌 미세다공막 및그 제조방법 |
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US (1) | US8323547B2 (ko) |
EP (1) | EP1882005A4 (ko) |
JP (1) | JP5230409B2 (ko) |
KR (1) | KR100943234B1 (ko) |
CN (2) | CN101223217B (ko) |
WO (1) | WO2006123850A1 (ko) |
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JP2000017100A (ja) * | 1998-07-03 | 2000-01-18 | Asahi Chem Ind Co Ltd | ポリエチレン微多孔膜の製造方法 |
US6096213A (en) * | 1998-08-14 | 2000-08-01 | 3M Innovative Properties Company | Puncture-resistant polyolefin membranes |
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US6783889B2 (en) * | 2000-12-13 | 2004-08-31 | Toray Industries, Inc. | Polyester film and magnetic recording medium using the same |
JP4986199B2 (ja) * | 2001-05-18 | 2012-07-25 | 旭化成イーマテリアルズ株式会社 | ポリエチレン製微多孔膜及びそれを用いた電池 |
JP2002358944A (ja) * | 2001-06-01 | 2002-12-13 | Asahi Kasei Corp | 電池用セパレータ |
JP4195810B2 (ja) * | 2002-12-16 | 2008-12-17 | 東燃化学株式会社 | ポリオレフィン微多孔膜及びその製造方法並びに用途 |
KR100683845B1 (ko) * | 2004-06-11 | 2007-02-15 | 에스케이 주식회사 | 고밀도폴리에틸렌 미세다공막 및 그 제조방법 |
-
2005
- 2005-05-16 KR KR1020050040815A patent/KR100943234B1/ko active IP Right Grant
- 2005-06-18 EP EP05765003A patent/EP1882005A4/en not_active Withdrawn
- 2005-06-18 JP JP2008512203A patent/JP5230409B2/ja active Active
- 2005-06-18 CN CN2005800510821A patent/CN101223217B/zh active Active
- 2005-06-18 CN CN2011101541256A patent/CN102276871A/zh active Pending
- 2005-06-18 WO PCT/KR2005/001894 patent/WO2006123850A1/en active Application Filing
-
2007
- 2007-05-24 US US11/753,174 patent/US8323547B2/en active Active
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WO2008072906A1 (en) * | 2006-12-14 | 2008-06-19 | Sk Energy Co., Ltd. | Preparing method of microporous polyolefin film through effective extrusion |
KR101288803B1 (ko) * | 2007-09-12 | 2013-07-23 | 에스케이이노베이션 주식회사 | 고온 강도 및 투과도가 우수한 폴리에틸렌 미세다공막 |
KR101432146B1 (ko) * | 2007-11-28 | 2014-08-28 | 에스케이이노베이션 주식회사 | 물성과 고온 열안정성이 우수한 폴리올레핀 미세다공막 |
WO2013111981A1 (ko) * | 2012-01-26 | 2013-08-01 | 주식회사 엘지화학 | 열유도 상분리법에 의한 폴리올레핀 미세다공막의 제조방법 |
US9803057B2 (en) | 2012-01-26 | 2017-10-31 | Lg Chem, Ltd. | Method for preparing microporous polyolefin film by thermally-induced phase separation method |
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Also Published As
Publication number | Publication date |
---|---|
JP2008540795A (ja) | 2008-11-20 |
EP1882005A1 (en) | 2008-01-30 |
KR100943234B1 (ko) | 2010-02-18 |
US8323547B2 (en) | 2012-12-04 |
EP1882005A4 (en) | 2012-06-27 |
US20070232709A1 (en) | 2007-10-04 |
JP5230409B2 (ja) | 2013-07-10 |
CN102276871A (zh) | 2011-12-14 |
WO2006123850A1 (en) | 2006-11-23 |
CN101223217A (zh) | 2008-07-16 |
CN101223217B (zh) | 2013-02-27 |
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