JP2019143142A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2019143142A5 JP2019143142A5 JP2019030636A JP2019030636A JP2019143142A5 JP 2019143142 A5 JP2019143142 A5 JP 2019143142A5 JP 2019030636 A JP2019030636 A JP 2019030636A JP 2019030636 A JP2019030636 A JP 2019030636A JP 2019143142 A5 JP2019143142 A5 JP 2019143142A5
- Authority
- JP
- Japan
- Prior art keywords
- porous polyolefin
- polyolefin film
- film
- formula
- film according
- 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
Links
- 229920000098 polyolefin Polymers 0.000 claims 10
- 239000004698 Polyethylene Substances 0.000 claims 3
- 230000008018 melting Effects 0.000 claims 3
- 238000002844 melting Methods 0.000 claims 3
- -1 polyethylene Polymers 0.000 claims 3
- 229920000573 polyethylene Polymers 0.000 claims 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- 229920001577 copolymer Polymers 0.000 claims 1
- 229920001903 high density polyethylene Polymers 0.000 claims 1
- 239000004700 high-density polyethylene Substances 0.000 claims 1
- LIKMAJRDDDTEIG-UHFFFAOYSA-N n-hexene Natural products CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 claims 1
- 239000004711 α-olefin Substances 0.000 claims 1
Description
以下、実施例を示して具体的に説明する。なお、以下、実施例３、６は、参考例３、６と読み替えるものとする。
Hereinafter, examples will be described in detail. Hereinafter, Examples 3 and 6 shall be read as Reference Examples 3 and 6.
Claims (9)
Ｔｍ－ＴＳＤ≧０ 式（１）
Φ≧４０ 式（２） A porous polyolefin film consisting of at least one layer, the puncture strength of the film converted to a film thickness of 20 μm is 6.4 N or more, the porosity of the porous polyolefin film is Φ (%), and the shutdown temperature is T. A porous polyolefin film that satisfies both of the following two equations when the lowest melting point of the melting points of SD (° C) and each layer is Tm (° C).
Tm-T SD ≧ 0 formula (1)
Φ ≧ 40 formula (2)
（ＭＭＤ×ＥＭＤ＋ＭＴＤ×ＥＴＤ）／２≧１３０００ 式（３） The porous polyolefin film according to any one of claims 1 to 3, which satisfies the following formula (3) when the tensile elongation in the longitudinal direction of the film is EMD and the tensile elongation in the width direction is ETD .
( MMD x E MD + M TD x E TD ) / 2 ≧ 13000 formula (3)
A secondary battery using the battery separator according to claim 8.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018030550 | 2018-02-23 | ||
| JP2018030550 | 2018-02-23 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2019143142A JP2019143142A (en) | 2019-08-29 |
| JP2019143142A5 true JP2019143142A5 (en) | 2022-02-25 |
| JP7395827B2 JP7395827B2 (en) | 2023-12-12 |
Family
ID=67773565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2019030636A Active JP7395827B2 (en) | 2018-02-23 | 2019-02-22 | porous polyolefin film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP7395827B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3757156A4 (en) * | 2018-02-23 | 2021-11-24 | Toray Industries, Inc. | Porous polyolefin film |
| JP2022554151A (en) * | 2019-10-23 | 2022-12-28 | ノバ ケミカルズ（インターナショナル）ソシエテ アノニム | Biaxially oriented MDPE film |
| CN111416086B (en) | 2020-03-04 | 2021-09-14 | 华为技术有限公司 | Battery diaphragm and preparation method thereof, battery and terminal |
| CA3233382A1 (en) | 2021-09-29 | 2023-04-06 | Ryoma KAWAGUCHI | Polyolefin film and method for manufacturing polyolefin film |
| WO2023149389A1 (en) * | 2022-02-02 | 2023-08-10 | 東レ株式会社 | Porous film, separator for secondary batteries, and secondary battery |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000072908A (en) * | 1998-08-28 | 2000-03-07 | Nitto Denko Corp | Porous film and its production and use |
| EP1097961B1 (en) * | 1999-02-19 | 2014-01-22 | Toray Battery Separator Film Co., Ltd. | Polyolefin microporous film and method for preparing the same |
| DE102006034052B3 (en) * | 2006-07-20 | 2007-10-31 | Repower Systems Ag | Lifting device arrangement for use with rotor blade of wind energy plant, has lifting device with extension arm, where lifting device is swivelable by rotating rotor blade, and control device for swiveling lifting device |
| US7872086B2 (en) * | 2008-01-17 | 2011-01-18 | Tonen Chemical Corporation | Polymeric material and its manufacture and use |
| EP2334416A2 (en) * | 2008-09-02 | 2011-06-22 | Toray Tonen Specialty Separator Godo Kaisha | Microporous polymeric membranes, methods for making such membranes, and the use of such membranes as battery separator film |
| WO2010114676A1 (en) * | 2009-03-30 | 2010-10-07 | Tonen Chemical Corporation | Microporous membranes, methods for making such membranes, and the use of such membranes as battery separator film |
| KR101808628B1 (en) * | 2010-01-13 | 2017-12-13 | 도레이 카부시키가이샤 | Microporous membranes and methods for producing and using such membranes |
| JP2011184671A (en) * | 2010-03-08 | 2011-09-22 | Kee:Kk | Heat resistant polyolefin microporous film and manufacturing method thereof |
| JP5296917B1 (en) * | 2012-11-16 | 2013-09-25 | 東レバッテリーセパレータフィルム株式会社 | Battery separator |
| KR101686401B1 (en) * | 2014-03-26 | 2016-12-14 | 도레이 배터리 세퍼레이터 필름 주식회사 | Laminated porous polyolefin film, cell separator using same, and method for manufacturing laminated porous polyolefin film |
| JP2015208893A (en) * | 2014-04-24 | 2015-11-24 | 東レバッテリーセパレータフィルム株式会社 | Polyolefin-made laminated microporous film |
| JP6094711B2 (en) * | 2015-06-19 | 2017-03-15 | 宇部興産株式会社 | Polyolefin microporous membrane, separator film for electricity storage device, and electricity storage device |
| JP2017088836A (en) * | 2015-11-11 | 2017-05-25 | 有限会社ケー・イー・イー | Low heat shrinkable polyolefin microporous film and manufacturing method therefor |
| JPWO2017170289A1 (en) * | 2016-03-31 | 2019-02-14 | 東レ株式会社 | Polyolefin microporous membrane and production method thereof, battery separator and battery |
-
2019
- 2019-02-22 JP JP2019030636A patent/JP7395827B2/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2019143142A5 (en) | ||
| ES2927659T3 (en) | Microlayer membranes, improved battery separators, and manufacturing and use procedures | |
| JP2010513102A5 (en) | ||
| JP2012504684A5 (en) | ||
| RU2018129657A (en) | POLYOLEFIN FILM WITH IMPROVED IMPACT STRENGTH | |
| CA2610397A1 (en) | Films having a combination of high impact strength and high shrink | |
| RU2011139477A (en) | CONTAINING MANY MICROLAYERS MULTI-LAYER SHRINKING FILM AND METHOD FOR ITS MANUFACTURE | |
| RU2017104456A (en) | COMPOSITIONS BASED ON POLYOLEFINS, ADHESIVES AND RELATED MULTILAYER STRUCTURES OBTAINED FROM THEM | |
| WO2020012314A3 (en) | Polyethylene composition and film | |
| JP2001500073A (en) | High modulus film | |
| JP2006051826A5 (en) | ||
| KR920004744B1 (en) | Polyethylene oriented film and manufacture thereof | |
| JP2013511609A5 (en) | ||
| RU2008140737A (en) | BLOCK INTERPOLYMERS PROPYLENE / α-OLEFINS | |
| JP5857046B2 (en) | Stretch hood made from ULDPE rich formulation | |
| RU2015150742A (en) | MULTILAYER POLYMER FILM | |
| MX2017016268A (en) | Multi-layered films oriented in the machine direction and articles comprising the same. | |
| WO2020012313A3 (en) | Polyethylene composition and film having retained dart impact | |
| JPWO2019163935A5 (en) | ||
| RU2018140336A (en) | FILMS ORIENTED IN THE MACHINE DIRECTIONS CONTAINING A MULTIMODAL POLYMER OF ETHYLENE AND AT LEAST TWO ALPHA-OLEPHINE COMONOMERS | |
| MX2019005480A (en) | Polymer blends for use in multilayer structure and multilayer structures comprising the same. | |
| WO2018094199A4 (en) | Polymer blends for use in multilayer structure and multilayer structures comprising the same | |
| MX2018003169A (en) | Multi-layer greenhouse film with superior anti-dripping performance. | |
| JP2020525362A5 (en) | ||
| KR20220131228A (en) | Base film for dicing tape |