JPS55746A - Manufacturing of micro-porous material - Google Patents
Manufacturing of micro-porous materialInfo
- Publication number
- JPS55746A JPS55746A JP7470878A JP7470878A JPS55746A JP S55746 A JPS55746 A JP S55746A JP 7470878 A JP7470878 A JP 7470878A JP 7470878 A JP7470878 A JP 7470878A JP S55746 A JPS55746 A JP S55746A
- Authority
- JP
- Japan
- Prior art keywords
- water
- micro
- vol
- porous material
- soluble
- 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.)
- Pending
Links
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
PURPOSE: To manufacture a micro-porous material having excellent mechanical properties, and useful as a filter, etc., by melting and forming a specific composition composed of a specific polyolefin, a water-soluble material, and a filler, and extracting and removing the water-soluble material from the formed article.
CONSTITUTION: A composition composed of (A) 12-65 vol% of a polyolefin having a melt index of 0.01-20 under standard load condition, e.g. polyethylene, (B) 24-74 vol% of a water-soluble substance such as inorganic salts, and (C) 0-40 vol% of a hydrophilic filler such as SiO2, is extrusion or injection molded to a sheet of 20-100μ thickness. the water-soluble substance is extracted from the sheet with water at ≥ 25°C to afford a micro-porous material having a porosity of 35-74%. The product has excellent chemical resistance, oil resistance and mechanical properties, and can be used as, e.g. a filter, a battery separator, etc.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7470878A JPS55746A (en) | 1978-06-20 | 1978-06-20 | Manufacturing of micro-porous material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7470878A JPS55746A (en) | 1978-06-20 | 1978-06-20 | Manufacturing of micro-porous material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55746A true JPS55746A (en) | 1980-01-07 |
Family
ID=13554987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7470878A Pending JPS55746A (en) | 1978-06-20 | 1978-06-20 | Manufacturing of micro-porous material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55746A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4595516A (en) * | 1983-12-05 | 1986-06-17 | Matsushita Electric Industrial Co., Ltd. | Heat storage material |
US5059630A (en) * | 1990-01-09 | 1991-10-22 | Dai-Ichi Kogyo Seiyaku Co., Ltd. | Methods for manufacture of porous resin moldings, ultrafine fibers and ultrafine fiber nonwoven fabrics |
JPH03290446A (en) * | 1990-04-07 | 1991-12-20 | Fukui Pref Gov | Processing of porous film |
JP2002060534A (en) * | 2000-08-23 | 2002-02-26 | Shachihata Inc | Polyolefin porous material having open cell |
US6391233B1 (en) * | 1999-06-24 | 2002-05-21 | Asahi Rubber Inc. | Method of producing a porous product |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4966758A (en) * | 1972-10-15 | 1974-06-28 | ||
JPS5174057A (en) * | 1974-12-25 | 1976-06-26 | Asahi Chemical Ind | TAKOTAINOSEI ZOHOHO |
-
1978
- 1978-06-20 JP JP7470878A patent/JPS55746A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4966758A (en) * | 1972-10-15 | 1974-06-28 | ||
JPS5174057A (en) * | 1974-12-25 | 1976-06-26 | Asahi Chemical Ind | TAKOTAINOSEI ZOHOHO |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4595516A (en) * | 1983-12-05 | 1986-06-17 | Matsushita Electric Industrial Co., Ltd. | Heat storage material |
US5059630A (en) * | 1990-01-09 | 1991-10-22 | Dai-Ichi Kogyo Seiyaku Co., Ltd. | Methods for manufacture of porous resin moldings, ultrafine fibers and ultrafine fiber nonwoven fabrics |
JPH03290446A (en) * | 1990-04-07 | 1991-12-20 | Fukui Pref Gov | Processing of porous film |
US6391233B1 (en) * | 1999-06-24 | 2002-05-21 | Asahi Rubber Inc. | Method of producing a porous product |
JP2002060534A (en) * | 2000-08-23 | 2002-02-26 | Shachihata Inc | Polyolefin porous material having open cell |
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