CA2802583A1 - Cast films, microporous membranes, and method of preparation thereof - Google Patents
Cast films, microporous membranes, and method of preparation thereof Download PDFInfo
- Publication number
- CA2802583A1 CA2802583A1 CA2802583A CA2802583A CA2802583A1 CA 2802583 A1 CA2802583 A1 CA 2802583A1 CA 2802583 A CA2802583 A CA 2802583A CA 2802583 A CA2802583 A CA 2802583A CA 2802583 A1 CA2802583 A1 CA 2802583A1
- Authority
- CA
- Canada
- Prior art keywords
- film
- degree
- temperature
- films
- stretched
- 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.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/005—Shaping by stretching, e.g. drawing through a die; Apparatus therefor characterised by the choice of materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/002—Organic membrane manufacture from melts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
- B01D67/0025—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching
- B01D67/0027—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching by stretching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/12—Composite membranes; Ultra-thin membranes
- B01D69/1212—Coextruded layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/12—Composite membranes; Ultra-thin membranes
- B01D69/1216—Three or more layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/26—Polyalkenes
- B01D71/261—Polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/26—Polyalkenes
- B01D71/262—Polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
- B29C48/915—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means
- B29C48/917—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means by applying pressurised gas to the surface of the flat article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/08—Specific temperatures applied
- B01D2323/081—Heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/08—Specific temperatures applied
- B01D2323/082—Cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
- B29C48/914—Cooling drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/023—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets using multilayered plates or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249978—Voids specified as micro
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US21958109P | 2009-06-23 | 2009-06-23 | |
| US61/219,581 | 2009-06-23 | ||
| US28804209P | 2009-12-18 | 2009-12-18 | |
| US61/288,042 | 2009-12-18 | ||
| PCT/CA2010/000952 WO2010148492A1 (en) | 2009-06-23 | 2010-06-18 | Cast films, microporous membranes, and method of preparation thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2802583A1 true CA2802583A1 (en) | 2010-12-29 |
Family
ID=43385827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2802583A Abandoned CA2802583A1 (en) | 2009-06-23 | 2010-06-18 | Cast films, microporous membranes, and method of preparation thereof |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20120276367A1 (https=) |
| JP (1) | JP2012530814A (https=) |
| KR (1) | KR20120104142A (https=) |
| CN (1) | CN102869490A (https=) |
| CA (1) | CA2802583A1 (https=) |
| WO (1) | WO2010148492A1 (https=) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10398605B2 (en) | 2014-05-13 | 2019-09-03 | Berry Film Products Company, Inc. | Breathable and microporous thin thermoplastic film |
| US10717255B2 (en) | 2015-11-05 | 2020-07-21 | Berry Plastics Corporation | Polymeric films and methods for making polymeric films |
| US11472085B2 (en) | 2016-02-17 | 2022-10-18 | Berry Plastics Corporation | Gas-permeable barrier film and method of making the gas-permeable barrier film |
| US11584111B2 (en) | 2018-11-05 | 2023-02-21 | Windmoeller & Hoelscher Kg | Breathable thermoplastic film with reduced shrinkage |
| US11872740B2 (en) | 2015-07-10 | 2024-01-16 | Berry Plastics Corporation | Microporous breathable film and method of making the microporous breathable film |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825805B (zh) * | 2012-09-12 | 2015-09-09 | 成都芝田高分子材料有限公司 | 聚丙烯微孔膜制备方法 |
| CN103647036B (zh) * | 2013-12-10 | 2016-01-06 | 深圳市星源材质科技股份有限公司 | 一种高强度微孔锂离子电池隔膜的制备方法及电池隔膜 |
| CN105181733A (zh) * | 2015-08-06 | 2015-12-23 | 江苏安瑞达新材料有限公司 | 一种利用dsc模拟聚烯烃流延基膜退火处理的方法 |
| JP7275574B2 (ja) * | 2018-12-27 | 2023-05-18 | Ube株式会社 | ポリオレフィン微多孔膜及び蓄電デバイス |
| CN110204816B (zh) * | 2019-06-22 | 2022-03-15 | 天津登峰卫生用品材料有限公司 | 一种可撕包膜及其制备方法 |
| US20240170803A1 (en) * | 2022-11-21 | 2024-05-23 | Ii-Vi Delaware, Inc. | Electrochemical Device Separator |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4276179A (en) * | 1979-06-01 | 1981-06-30 | Celanese Corporation | Removing halogenated hydrocarbons from aqueous media by utilizing a polyolefinic microporous adsorbent |
| DE3564078D1 (en) * | 1984-11-09 | 1988-09-08 | Terumo Corp | Flat permeable membrane and method for manufacture thereof |
| JPH02294340A (ja) * | 1989-05-09 | 1990-12-05 | Toray Ind Inc | ポリプロピレンフイルム |
| JP2917331B2 (ja) * | 1989-11-24 | 1999-07-12 | 東レ株式会社 | 白色不透明化ポリオレフィンフイルム |
| BR9206560A (pt) * | 1991-10-01 | 1995-03-28 | Minnesota Mining & Mfg | Fita compósita, e, processo para a fabricacão de fita adesiva sensível a pressão por processamento por fusão |
| JP3003830B2 (ja) * | 1994-05-12 | 2000-01-31 | 宇部興産株式会社 | 積層多孔質フイルム及びその製法 |
| JP3582670B2 (ja) * | 1995-02-24 | 2004-10-27 | 東レ株式会社 | ポリエステルフィルムおよびその製造方法 |
| JP3852492B2 (ja) * | 1996-08-06 | 2006-11-29 | 宇部興産株式会社 | 電池用セパレータの製造法 |
| US6090898A (en) * | 1997-02-26 | 2000-07-18 | Toray Industries, Inc. | Polyester film and a production process thereof |
| KR100371398B1 (ko) * | 1998-12-08 | 2003-05-12 | 주식회사 엘지화학 | 폴리올레핀블렌드로제조된통기성필름과그의제조방법및2차전지의격리막 |
| US6331343B1 (en) * | 1999-05-07 | 2001-12-18 | 3M Innovative Properties Company | Films having a fibrillated surface and method of making |
| US6479007B1 (en) * | 1999-09-16 | 2002-11-12 | University Technology Corporation | Apparatus and method for controlling pore size in polymeric membranes and thin films |
| US6809168B2 (en) * | 1999-12-10 | 2004-10-26 | Exxonmobil Chemical Patents Inc. | Articles formed from propylene diene copolymers |
| JP2002273780A (ja) * | 2001-03-21 | 2002-09-25 | Daiya Plastic Kk | 熱可塑性樹脂フィルムの冷却方法 |
| JP3952720B2 (ja) * | 2001-10-01 | 2007-08-01 | 富士フイルム株式会社 | 溶液製膜方法及び溶液製膜装置 |
| JP4202728B2 (ja) * | 2001-11-19 | 2008-12-24 | 三井化学ファブロ株式会社 | ポリオレフィン系ストレッチフィルム及びその製造方法 |
| JP4574260B2 (ja) * | 2004-07-16 | 2010-11-04 | 東セロ株式会社 | 樹脂フィルムの製造方法及び樹脂フィルム成形用エッジピンニング装置 |
| KR100961660B1 (ko) * | 2005-12-21 | 2010-06-09 | 에스케이에너지 주식회사 | 반결정고분자 미세다공막 및 그 제조방법 |
| US20070264578A1 (en) * | 2006-05-15 | 2007-11-15 | Tonen Chemical Corporation | Microporous polyolefin membrane, its production method and battery separator |
| JP5361363B2 (ja) * | 2008-12-15 | 2013-12-04 | 旭化成イーマテリアルズ株式会社 | 積層微多孔性フィルム及びその製造方法 |
-
2010
- 2010-06-18 KR KR20127001845A patent/KR20120104142A/ko not_active Withdrawn
- 2010-06-18 JP JP2012516446A patent/JP2012530814A/ja not_active Ceased
- 2010-06-18 CN CN2010800373882A patent/CN102869490A/zh active Pending
- 2010-06-18 US US13/379,272 patent/US20120276367A1/en not_active Abandoned
- 2010-06-18 CA CA2802583A patent/CA2802583A1/en not_active Abandoned
- 2010-06-18 WO PCT/CA2010/000952 patent/WO2010148492A1/en not_active Ceased
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10398605B2 (en) | 2014-05-13 | 2019-09-03 | Berry Film Products Company, Inc. | Breathable and microporous thin thermoplastic film |
| US10398606B2 (en) | 2014-05-13 | 2019-09-03 | Berry Film Products Company, Inc. | Breathable and microporous thin thermoplastic film |
| USRE48555E1 (en) | 2014-05-13 | 2021-05-18 | Berry Film Products Company, Inc. | Breathable and microporous thin thermoplastic film |
| US11931229B2 (en) | 2014-05-13 | 2024-03-19 | Berry Film Products Company, Inc. | Breathable and microporous thin thermoplastic film |
| US11872740B2 (en) | 2015-07-10 | 2024-01-16 | Berry Plastics Corporation | Microporous breathable film and method of making the microporous breathable film |
| US10717255B2 (en) | 2015-11-05 | 2020-07-21 | Berry Plastics Corporation | Polymeric films and methods for making polymeric films |
| US11472085B2 (en) | 2016-02-17 | 2022-10-18 | Berry Plastics Corporation | Gas-permeable barrier film and method of making the gas-permeable barrier film |
| US11584111B2 (en) | 2018-11-05 | 2023-02-21 | Windmoeller & Hoelscher Kg | Breathable thermoplastic film with reduced shrinkage |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012530814A (ja) | 2012-12-06 |
| KR20120104142A (ko) | 2012-09-20 |
| US20120276367A1 (en) | 2012-11-01 |
| CN102869490A (zh) | 2013-01-09 |
| WO2010148492A1 (en) | 2010-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2802583A1 (en) | Cast films, microporous membranes, and method of preparation thereof | |
| Tabatabaei et al. | Microporous membranes obtained from PP/HDPE multilayer films by stretching | |
| Tabatabaei et al. | Microporous membranes obtained from polypropylene blend films by stretching | |
| Tabatabaei et al. | Effect of processing on the crystalline orientation, morphology, and mechanical properties of polypropylene cast films and microporous membrane formation | |
| Sadeghi et al. | Study of polypropylene morphology obtained from blown and cast film processes: initial morphology requirements for making porous membrane by stretching | |
| Sadeghi et al. | Analysis of microporous membranes obtained from polypropylene films by stretching | |
| JP4494637B2 (ja) | ポリオレフィン微多孔膜及びその製造方法 | |
| EP0765900B1 (en) | Method of producing a microporous polyolefin membrane | |
| JP5422562B2 (ja) | ポリマー微多孔膜 | |
| Sadeghi et al. | Analysis of row nucleated lamellar morphology of polypropylene obtained from the cast film process: Effect of melt rheology and process conditions | |
| Wu et al. | Pore formation mechanism of β nucleated polypropylene stretched membranes | |
| EP1873193B1 (en) | Process for producing microporous polyolefin film and microporous polyolefin film | |
| US8304114B2 (en) | Microporous polyolefin membrane and manufacturing method | |
| RU2422191C2 (ru) | Микропористые полиолефиновые мембраны и способы их получения | |
| WO1999048959A1 (fr) | Film polyolefinique microporeux | |
| JP4804079B2 (ja) | ポリオレフィン製微多孔膜 | |
| Yang et al. | Deformation and pore formation mechanism of β nucleated polypropylene with different supermolecular structures | |
| EP1873194B1 (en) | Method for producing polyolefin microporous film and microporous film | |
| JP7771814B2 (ja) | ポリオレフィン微多孔膜、電池用セパレータ及び二次電池 | |
| CN114516982B (zh) | 聚烯烃微多孔膜、电池用隔膜及二次电池 | |
| WO2022202095A1 (ja) | ポリオレフィン微多孔膜、電池用セパレータ及び二次電池 | |
| Chen et al. | Novel method for fabrication of PP/HDPE/PP trilayer microporous membrane with a highly orientated structure | |
| EP2111912A1 (en) | Microporous polyolefin membrane and manufacturing method | |
| Tabatabaei | Development of microporous membranes from PP/HDPE films through cast extrusion and stretching | |
| Saffar et al. | ARTICLE 3: THE IMPACT OF NEW CRYSTALLINE LAMELLAE FORMATION DURING ANNEALING ON THE PROPERTIES OF POLYPROPYLENE BASED FILMS AND MEMBRANES |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20150612 |
|
| FZDE | Discontinued |
Effective date: 20171221 |