JPS55746A - Manufacturing of micro-porous material - Google Patents

Manufacturing of micro-porous material

Info

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
Application number
JP7470878A
Other languages
Japanese (ja)
Inventor
Akira Takahashi
Masao Ishikawa
Akio Kasai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHOWA GOMME KK
Showa Rubber Co Ltd
Original Assignee
SHOWA GOMME KK
Showa Rubber Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHOWA GOMME KK, Showa Rubber Co Ltd filed Critical SHOWA GOMME KK
Priority to JP7470878A priority Critical patent/JPS55746A/en
Publication of JPS55746A publication Critical patent/JPS55746A/en
Pending legal-status Critical Current

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
JP7470878A 1978-06-20 1978-06-20 Manufacturing of micro-porous material Pending JPS55746A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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