JPS54135891A - Preparation of modified polyvinyl alcohol polymer - Google Patents

Preparation of modified polyvinyl alcohol polymer

Info

Publication number
JPS54135891A
JPS54135891A JP4441878A JP4441878A JPS54135891A JP S54135891 A JPS54135891 A JP S54135891A JP 4441878 A JP4441878 A JP 4441878A JP 4441878 A JP4441878 A JP 4441878A JP S54135891 A JPS54135891 A JP S54135891A
Authority
JP
Japan
Prior art keywords
mole
polyvinyl alcohol
group
less
acid
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
JP4441878A
Other languages
Japanese (ja)
Other versions
JPS613801B2 (en
Inventor
Toshiyuki Akazawa
Koichi Kajitani
Makoto Shiraishi
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 JP4441878A priority Critical patent/JPS54135891A/en
Publication of JPS54135891A publication Critical patent/JPS54135891A/en
Publication of JPS613801B2 publication Critical patent/JPS613801B2/ja
Granted legal-status Critical Current

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

Abstract

PURPOSE: To obtain a modified water-soluble polyvinyl alcohol having improved surface activity and high solution viscosity, by introducing a hydrophobic and an ionic groups into a polyvinyl alcohol polymer.
CONSTITUTION: C) Vinyl acetate as a main component is plymerized with A) 0.2W10 mole %, preferably 0.8W7.0 mole % of one or more monomers selected from the group consisting of a vinyl ester of a fatty acid having not less than six carbon atoms and an α-olefin having not less than six carbon atoms as a hydrophobic group donor component and B) 0.2W10 mole %, preferably 0.5W7.0 mole % of one or more monomes selected from the group consisting of an ethylenic unsaturated carboxylic acid, its lower alkyl ester and acid anhydride as an ionic group providing component in the presence of a radical catalyst in an alcohol solvent or without a solvent at 58W65°C to give a copolymer, which is dissolved in a water- containing alcohol and saponified in the presence of an alkali or an acid catalyst at 20W50°C to a saponification value not less than 80%.
COPYRIGHT: (C)1979,JPO&Japio
JP4441878A 1978-04-13 1978-04-13 Preparation of modified polyvinyl alcohol polymer Granted JPS54135891A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4441878A JPS54135891A (en) 1978-04-13 1978-04-13 Preparation of modified polyvinyl alcohol polymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4441878A JPS54135891A (en) 1978-04-13 1978-04-13 Preparation of modified polyvinyl alcohol polymer

Publications (2)

Publication Number Publication Date
JPS54135891A true JPS54135891A (en) 1979-10-22
JPS613801B2 JPS613801B2 (en) 1986-02-04

Family

ID=12690937

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4441878A Granted JPS54135891A (en) 1978-04-13 1978-04-13 Preparation of modified polyvinyl alcohol polymer

Country Status (1)

Country Link
JP (1) JPS54135891A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6144940A (en) * 1984-08-09 1986-03-04 Kuraray Co Ltd Polyvinyl alcohol film
JP2010202840A (en) * 2009-03-06 2010-09-16 Denki Kagaku Kogyo Kk Modified polyvinyl alcohol and method for producing the same
US10005867B2 (en) * 2005-03-08 2018-06-26 Denki Kagaku Kogyo Kabushiki Kaisha Modified polyvinyl alcohol and process for producing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6144940A (en) * 1984-08-09 1986-03-04 Kuraray Co Ltd Polyvinyl alcohol film
US10005867B2 (en) * 2005-03-08 2018-06-26 Denki Kagaku Kogyo Kabushiki Kaisha Modified polyvinyl alcohol and process for producing the same
JP2010202840A (en) * 2009-03-06 2010-09-16 Denki Kagaku Kogyo Kk Modified polyvinyl alcohol and method for producing the same

Also Published As

Publication number Publication date
JPS613801B2 (en) 1986-02-04

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