JPS55127444A - Production of hydrophilic plastic sheet - Google Patents
Production of hydrophilic plastic sheetInfo
- Publication number
- JPS55127444A JPS55127444A JP3581879A JP3581879A JPS55127444A JP S55127444 A JPS55127444 A JP S55127444A JP 3581879 A JP3581879 A JP 3581879A JP 3581879 A JP3581879 A JP 3581879A JP S55127444 A JPS55127444 A JP S55127444A
- Authority
- JP
- Japan
- Prior art keywords
- molded article
- hydrophilic nature
- pores
- liquid
- porous plastic
- 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
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
PURPOSE: To obtain title molded article useful as a separator for a battery, by a method wherein a liquid of a hydrophilic nature-imparting powder is penetrated into pores of a porous plastic molded article and the molded article is streched under heating condition to remove the solvent and to retain the hydrophilic nature-imparting powder within the pores.
CONSTITUTION: A molded article of a porous thermoplastic polymer such as polyethylene or polypropylene which can be streched is coated with a liquid in which a hydrophilic nature-imparting powder such as silicon dioxide, kaolin, or chromium oxide is dissolved or decomposed in a solvent, in order to penetrate the liquid into pores of the porous plastic molded article. The porous plastic molded article is streched at least in one direction under heating condition with a draw ratio of usually 20W600%, preferably 40W550%, and thereby the solvent for the liquid of the hydrophilic nature-imparting powder is removed and the hydrophilic nature-imparting powder is retained within the pores of the porous plastic molded article to obtain the desired molded article.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3581879A JPS55127444A (en) | 1979-03-26 | 1979-03-26 | Production of hydrophilic plastic sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3581879A JPS55127444A (en) | 1979-03-26 | 1979-03-26 | Production of hydrophilic plastic sheet |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55127444A true JPS55127444A (en) | 1980-10-02 |
JPS6341944B2 JPS6341944B2 (en) | 1988-08-19 |
Family
ID=12452514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3581879A Granted JPS55127444A (en) | 1979-03-26 | 1979-03-26 | Production of hydrophilic plastic sheet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55127444A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01283129A (en) * | 1988-05-10 | 1989-11-14 | Unitika Ltd | Porous composite sheet and its manufacture |
JPH0333656U (en) * | 1989-08-08 | 1991-04-03 | ||
WO2010044456A1 (en) | 2008-10-17 | 2010-04-22 | ジャパンゴアテックス株式会社 | Method for producing air-permeable composite sheet |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5281238A (en) * | 1975-12-27 | 1977-07-07 | Nissan Chemical Ind Ltd | Urea resin foam mat |
JPS5286470A (en) * | 1976-01-13 | 1977-07-18 | Matsushita Electric Ind Co Ltd | Method of manufacturing porous film typed plastics |
-
1979
- 1979-03-26 JP JP3581879A patent/JPS55127444A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5281238A (en) * | 1975-12-27 | 1977-07-07 | Nissan Chemical Ind Ltd | Urea resin foam mat |
JPS5286470A (en) * | 1976-01-13 | 1977-07-18 | Matsushita Electric Ind Co Ltd | Method of manufacturing porous film typed plastics |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01283129A (en) * | 1988-05-10 | 1989-11-14 | Unitika Ltd | Porous composite sheet and its manufacture |
JPH0520460B2 (en) * | 1988-05-10 | 1993-03-19 | Unitika Ltd | |
JPH0333656U (en) * | 1989-08-08 | 1991-04-03 | ||
WO2010044456A1 (en) | 2008-10-17 | 2010-04-22 | ジャパンゴアテックス株式会社 | Method for producing air-permeable composite sheet |
US20110268961A1 (en) * | 2008-10-17 | 2011-11-03 | Hiroshi Manabe | Method for producing air-permeable composite sheet |
EP2348067A4 (en) * | 2008-10-17 | 2012-05-09 | Japan Gore Tex Inc | Method for producing air-permeable composite sheet |
AU2009304675B2 (en) * | 2008-10-17 | 2013-09-12 | Japan Gore-Tex Inc. | Method for producing air-permeable composite sheet |
US9138690B2 (en) * | 2008-10-17 | 2015-09-22 | W. L. Gore & Associates, Co., Ltd. | Method for producing air-permeable composite sheet |
US9221021B2 (en) | 2008-10-17 | 2015-12-29 | W. L. Gore & Associates, Co., Ltd. | Method for producing air-permeable composite sheet |
Also Published As
Publication number | Publication date |
---|---|
JPS6341944B2 (en) | 1988-08-19 |
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