JPS5611931A - Porous membrane of polyvinyl alcohol - Google Patents

Porous membrane of polyvinyl alcohol

Info

Publication number
JPS5611931A
JPS5611931A JP8785679A JP8785679A JPS5611931A JP S5611931 A JPS5611931 A JP S5611931A JP 8785679 A JP8785679 A JP 8785679A JP 8785679 A JP8785679 A JP 8785679A JP S5611931 A JPS5611931 A JP S5611931A
Authority
JP
Japan
Prior art keywords
film
polyvinyl alcohol
fine particles
porous membrane
particle size
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
Application number
JP8785679A
Other languages
Japanese (ja)
Other versions
JPS6148533B2 (en
Inventor
Akinori Sueoka
Takehiko Okamoto
Akio Omori
Shuji Kawai
Minoru Ueda
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.)
Kuraray Co Ltd
Original Assignee
Kuraray 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 Kuraray Co Ltd filed Critical Kuraray Co Ltd
Priority to JP8785679A priority Critical patent/JPS5611931A/en
Publication of JPS5611931A publication Critical patent/JPS5611931A/en
Publication of JPS6148533B2 publication Critical patent/JPS6148533B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Artificial Filaments (AREA)

Abstract

PURPOSE: Titled porous membrane made by removing almost all of silica fine particles from polyvinyl alcohol films containing the same, thus suitably being used as a filtering material because they have uniform porous structure with specified average size and void volume and high permeability.
CONSTITUTION: Fine particles of silica, preferably of 0.1W10μ particle size, is mixed with a polymer dope of polyvinyl alcohol and the dope is made into hollow fiber of film. Then, the film is treated with an aqueous alkali to extract more than 90wt% of silica fine particles, preferably more than 99wt% to produce the objective porous film with uniform pore structure of 0.01W50, preferably 0.05W20μ average particle size and more than 60%, preferably more than 70% void volume. When needed, the film is crosslinked by treatment with glutaraldehyde before the alkali extraction to increase the pressure and heat resistance.
COPYRIGHT: (C)1981,JPO&Japio
JP8785679A 1979-07-10 1979-07-10 Porous membrane of polyvinyl alcohol Granted JPS5611931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8785679A JPS5611931A (en) 1979-07-10 1979-07-10 Porous membrane of polyvinyl alcohol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8785679A JPS5611931A (en) 1979-07-10 1979-07-10 Porous membrane of polyvinyl alcohol

Publications (2)

Publication Number Publication Date
JPS5611931A true JPS5611931A (en) 1981-02-05
JPS6148533B2 JPS6148533B2 (en) 1986-10-24

Family

ID=13926521

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8785679A Granted JPS5611931A (en) 1979-07-10 1979-07-10 Porous membrane of polyvinyl alcohol

Country Status (1)

Country Link
JP (1) JPS5611931A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09194744A (en) * 1996-01-22 1997-07-29 Kuraray Co Ltd Porous gel-like material
JP2013034973A (en) * 2011-08-10 2013-02-21 National Institute For Materials Science Pva porous membrane, method for manufacturing the same, and filtration filter having the pva porous membrane
JP2015165005A (en) * 2014-02-28 2015-09-17 ポール・コーポレーションＰａｌｌＣｏｒｐｏｒａｔｉｏｎ Porous polymeric membrane with high void volume
US9446355B2 (en) 2014-02-28 2016-09-20 Pall Corporation Porous polymeric membrane with high void volume
US9610548B2 (en) 2014-02-28 2017-04-04 Pall Corporation Composite porous polymeric membrane with high void volume
US9764292B2 (en) 2014-02-28 2017-09-19 Pall Corporation Porous polymeric membrane with high void volume
CN111100316A (en) * 2018-10-25 2020-05-05 中国石油化工股份有限公司 Hollow polyvinyl alcohol particles and preparation method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180097518A (en) * 2015-11-20 2018-08-31 비엘 테크놀러지스 인크. Polyvinyl alcohol porous support and method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09194744A (en) * 1996-01-22 1997-07-29 Kuraray Co Ltd Porous gel-like material
JP2013034973A (en) * 2011-08-10 2013-02-21 National Institute For Materials Science Pva porous membrane, method for manufacturing the same, and filtration filter having the pva porous membrane
JP2015165005A (en) * 2014-02-28 2015-09-17 ポール・コーポレーションＰａｌｌＣｏｒｐｏｒａｔｉｏｎ Porous polymeric membrane with high void volume
US9446355B2 (en) 2014-02-28 2016-09-20 Pall Corporation Porous polymeric membrane with high void volume
US9610548B2 (en) 2014-02-28 2017-04-04 Pall Corporation Composite porous polymeric membrane with high void volume
US9764292B2 (en) 2014-02-28 2017-09-19 Pall Corporation Porous polymeric membrane with high void volume
CN111100316A (en) * 2018-10-25 2020-05-05 中国石油化工股份有限公司 Hollow polyvinyl alcohol particles and preparation method thereof
CN111100316B (en) * 2018-10-25 2022-11-11 中国石油化工股份有限公司 Hollow polyvinyl alcohol particles and preparation method thereof

Also Published As

Publication number Publication date
JPS6148533B2 (en) 1986-10-24

Similar Documents

Publication Publication Date Title
ES489544A1 (en) An Apparatus in which Heat is transferred through Hollow Threads as well as Hollow Threads suitable for this purpose
JPS56110625A (en) Separating method of blood plasma and apparatus for the same
JPS5611931A (en) Porous membrane of polyvinyl alcohol
JPS5584503A (en) Preparing cellulose ester based selective permeable membrane
US3600147A (en) Method of making a glass semipermeable membrane
DK0695173T3 (en) Manufacture of matrices
JPS5610533A (en) Polyvinyl alcohol porous membrane and production thereof
JPS57206378A (en) Filtering method of sake
JPS575914A (en) Modification of porous hollow fiber
JPS57101009A (en) Production of porous vinyl synthetic fiber of high dyeability
JPS5690838A (en) Production of composite membrane by utilizing plasma irradiation
JPS5411322A (en) Hollow cellulose fibers and their production
JPS5439952A (en) Method of producing purified water
JPS5763302A (en) Spherical particles of crosslinked porous amylose and its production
JPS57210010A (en) Production of porous hollow fiber membrane
JPS56135525A (en) Production of porous membrane
JPS5640415A (en) Manufacture of extremely thin membrane
JPS56110749A (en) Preparation of sintered product with permanently hydrophilic nature
JPS551887A (en) Preparing membrane by removing component from multiple component material
JPS5763303A (en) Spherical particles of crosslinked porous amylopectin and its production
JPS521134A (en) Process for manufacturing hollow polyvinyl alcohol fibers
DE2946645A1 (en) Carbon adsorbents for selective adsorption of low molecular cpds. - from mixts. with high molecular substances
JPS5411080A (en) Separating support
JPS5742740A (en) Production of porous membrane
JPS5390367A (en) Preparation of hollow fiber membrane