JPS56151703A - Preparation of polyvinyl alcohol gel having improved salt separating ability - Google Patents

Preparation of polyvinyl alcohol gel having improved salt separating ability

Info

Publication number
JPS56151703A
JPS56151703A JP5595780A JP5595780A JPS56151703A JP S56151703 A JPS56151703 A JP S56151703A JP 5595780 A JP5595780 A JP 5595780A JP 5595780 A JP5595780 A JP 5595780A JP S56151703 A JPS56151703 A JP S56151703A
Authority
JP
Japan
Prior art keywords
preparation
polyvinyl alcohol
improved salt
separating ability
salt separating
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
JP5595780A
Other languages
Japanese (ja)
Inventor
Teruo Sakagami
Noriyuki Arakawa
Naohiro Murayama
Masakatsu Kazutomo
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.)
Kureha Corp
Original Assignee
Kureha Corp
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 Kureha Corp filed Critical Kureha Corp
Priority to JP5595780A priority Critical patent/JPS56151703A/en
Publication of JPS56151703A publication Critical patent/JPS56151703A/en
Pending legal-status Critical Current

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  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PURPOSE: To obtain the titled gel useful as a separating carrier, etc., having improved strength and hardness, capable of carrying out treatment at high flow velocity, by copolymerizing a specific amount of vinyl acetate with a crosslinking agent with a triazine structure in the presence of an adjustor for micropores in suspension to give a granular copolymer, followed by saponifying it and subjecting it to acidic treatment.
CONSTITUTION: In the presence of an adjustor for micro pores (e.g., ethyl acetate, etc.), (A) 100pts.wt. vinyl acetate is copolymerized with (B) 2W50pts.wt. crosslinking agent having a triazine structure shown by the formula I [R1, R2, and R3 are -CH2-CH=CH2, -CH2-C≤CH, or -CH2-C(CH3)=CH2] or shown by the formula III in the presence of water in suspension. The prepared granular copolymer is saponified, and heat-treated in an aqueous solution with a pH≤2 at 60W80°C for ≥30min, to give the desired gel having improved salt separating ability.
COPYRIGHT: (C)1981,JPO&Japio
JP5595780A 1980-04-25 1980-04-25 Preparation of polyvinyl alcohol gel having improved salt separating ability Pending JPS56151703A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5595780A JPS56151703A (en) 1980-04-25 1980-04-25 Preparation of polyvinyl alcohol gel having improved salt separating ability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5595780A JPS56151703A (en) 1980-04-25 1980-04-25 Preparation of polyvinyl alcohol gel having improved salt separating ability

Publications (1)

Publication Number Publication Date
JPS56151703A true JPS56151703A (en) 1981-11-24

Family

ID=13013550

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5595780A Pending JPS56151703A (en) 1980-04-25 1980-04-25 Preparation of polyvinyl alcohol gel having improved salt separating ability

Country Status (1)

Country Link
JP (1) JPS56151703A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006070876A1 (en) * 2004-12-28 2006-07-06 Kaneka Corporation Crosslinked polymer particle and process for producing the same
JP2007131668A (en) * 2005-11-08 2007-05-31 Kaneka Corp Crosslinked polymer particle and its manufacturing process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006070876A1 (en) * 2004-12-28 2006-07-06 Kaneka Corporation Crosslinked polymer particle and process for producing the same
JP2007131668A (en) * 2005-11-08 2007-05-31 Kaneka Corp Crosslinked polymer particle and its manufacturing process

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