JPS5617606A - Dewatering filter and its production - Google Patents

Dewatering filter and its production

Info

Publication number
JPS5617606A
JPS5617606A JP9407779A JP9407779A JPS5617606A JP S5617606 A JPS5617606 A JP S5617606A JP 9407779 A JP9407779 A JP 9407779A JP 9407779 A JP9407779 A JP 9407779A JP S5617606 A JPS5617606 A JP S5617606A
Authority
JP
Japan
Prior art keywords
carboxylic groups
compressively
fiber
nonswollen
polymer
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
JP9407779A
Other languages
Japanese (ja)
Other versions
JPS6143082B2 (en
Inventor
Koji Tanaka
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.)
Japan Exlan Co Ltd
Original Assignee
Japan Exlan 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 Japan Exlan Co Ltd filed Critical Japan Exlan Co Ltd
Priority to JP9407779A priority Critical patent/JPS5617606A/en
Priority to GB8004476A priority patent/GB2044273B/en
Priority to DE19803005198 priority patent/DE3005198A1/en
Publication of JPS5617606A publication Critical patent/JPS5617606A/en
Priority to US06/351,363 priority patent/US4507204A/en
Publication of JPS6143082B2 publication Critical patent/JPS6143082B2/ja
Granted legal-status Critical Current

Links

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  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

PURPOSE: To produce a dewatering filter having superior dewatering capacity by compressively molding the specific fiber aggregate containing latent water swelling fibers binding and containing acid type carboxylic groups into a cylindrical shape and neutralizing and drying the molding in a nonswollen state.
CONSTITUTION: The fiber aggregate, at least part of the fiber outer layer thereof is constituted by a hydrophilic crosslinked polymer and the remainder by an acrylonitrile-base polymer or other polymer and which contains latent water swelling fibers, at least part whereof bond and contain 0.1W4.0mmol/g carboxylic groups is compressively molded to a cylindrical shape. The thus compressively molded fiber aggretate is neutralized and dried in a nonswollen state, as it is held compressed without being taken out from the molder to convert the carboxylic groups to salt type carboxylic groups (-COOX, X is alkali metals or NH4). The resulted dewatering filter permits long-time use without causing choking or the like.
COPYRIGHT: (C)1981,JPO&Japio
JP9407779A 1979-02-12 1979-07-23 Dewatering filter and its production Granted JPS5617606A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP9407779A JPS5617606A (en) 1979-07-23 1979-07-23 Dewatering filter and its production
GB8004476A GB2044273B (en) 1979-02-12 1980-02-11 Fibrous material and filters for removing water from hydrophobic liquids
DE19803005198 DE3005198A1 (en) 1979-02-12 1980-02-12 WATER REMOVAL MATERIAL
US06/351,363 US4507204A (en) 1979-02-12 1982-02-23 Water-removing material usable for hydrophobic liquids and process for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9407779A JPS5617606A (en) 1979-07-23 1979-07-23 Dewatering filter and its production

Publications (2)

Publication Number Publication Date
JPS5617606A true JPS5617606A (en) 1981-02-19
JPS6143082B2 JPS6143082B2 (en) 1986-09-25

Family

ID=14100422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9407779A Granted JPS5617606A (en) 1979-02-12 1979-07-23 Dewatering filter and its production

Country Status (1)

Country Link
JP (1) JPS5617606A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59620A (en) * 1982-06-28 1984-01-05 Kinmon Seisakusho:Kk Flow rate measuring device
JP2013193035A (en) * 2012-03-21 2013-09-30 Orion Machinery Co Ltd Gas-liquid separation filter and air cleaner for compressed air
JP2016028137A (en) * 2014-07-09 2016-02-25 東洋紡株式会社 Moisture adsorption filter for liquid fuel
WO2019146465A1 (en) * 2018-01-24 2019-08-01 日本エクスラン工業株式会社 Water-absorbing fiber precursor, water-absorbing nonwoven fabric precursor and water-absorbing nonwoven fabric, face mask containing these and skin lotion-filled face mask, and manufacturing method of there

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59620A (en) * 1982-06-28 1984-01-05 Kinmon Seisakusho:Kk Flow rate measuring device
JP2013193035A (en) * 2012-03-21 2013-09-30 Orion Machinery Co Ltd Gas-liquid separation filter and air cleaner for compressed air
JP2016028137A (en) * 2014-07-09 2016-02-25 東洋紡株式会社 Moisture adsorption filter for liquid fuel
WO2019146465A1 (en) * 2018-01-24 2019-08-01 日本エクスラン工業株式会社 Water-absorbing fiber precursor, water-absorbing nonwoven fabric precursor and water-absorbing nonwoven fabric, face mask containing these and skin lotion-filled face mask, and manufacturing method of there
JPWO2019146465A1 (en) * 2018-01-24 2020-02-06 日本エクスラン工業株式会社 Water-absorbing fiber precursor, water-absorbing nonwoven fabric precursor, water-absorbing nonwoven fabric, face mask containing these, and face mask filled with lotion, and methods for producing these

Also Published As

Publication number Publication date
JPS6143082B2 (en) 1986-09-25

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