JPS54118490A - Preparation of modified polyvinyl alcohol - Google Patents

Preparation of modified polyvinyl alcohol

Info

Publication number
JPS54118490A
JPS54118490A JP2711978A JP2711978A JPS54118490A JP S54118490 A JPS54118490 A JP S54118490A JP 2711978 A JP2711978 A JP 2711978A JP 2711978 A JP2711978 A JP 2711978A JP S54118490 A JPS54118490 A JP S54118490A
Authority
JP
Japan
Prior art keywords
polyvinyl alcohol
modified polyvinyl
preparation
anhydride
cyclic 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.)
Pending
Application number
JP2711978A
Other languages
Japanese (ja)
Inventor
Toshihiko Yoshitake
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 JP2711978A priority Critical patent/JPS54118490A/en
Publication of JPS54118490A publication Critical patent/JPS54118490A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE: To prepare a uniformly modified polyvinyl alcohol, by esterifying polyvinyl alcohol with a cyclic acid anhydride in a swelling solvent in an anhydrous state.
CONSTITUTION: Polyvinyl alcohol having a polymerization degree of 100W5,000 and a saponification degree of 50W100 mole % is esterified with a cyclic acid anhydride, e.g. maleic or phthalic anhydride, in an anhydrous state in a solvent which swells the polyvinyl alcohol and will not react with the anhydride in the presence of a catalyst, e.g. NaOH or Na2CO3, at 30W150°C for 30 minW10 hr.
COPYRIGHT: (C)1979,JPO&Japio
JP2711978A 1978-03-07 1978-03-07 Preparation of modified polyvinyl alcohol Pending JPS54118490A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2711978A JPS54118490A (en) 1978-03-07 1978-03-07 Preparation of modified polyvinyl alcohol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2711978A JPS54118490A (en) 1978-03-07 1978-03-07 Preparation of modified polyvinyl alcohol

Publications (1)

Publication Number Publication Date
JPS54118490A true JPS54118490A (en) 1979-09-13

Family

ID=12212167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2711978A Pending JPS54118490A (en) 1978-03-07 1978-03-07 Preparation of modified polyvinyl alcohol

Country Status (1)

Country Link
JP (1) JPS54118490A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56155203A (en) * 1980-04-30 1981-12-01 Kuraray Co Ltd Production of carboxyl group-containing polymer material
JPH04121424U (en) * 1991-04-19 1992-10-29 臼井国際産業株式会社 Radiator shutter and blades used therein

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56155203A (en) * 1980-04-30 1981-12-01 Kuraray Co Ltd Production of carboxyl group-containing polymer material
JPH04121424U (en) * 1991-04-19 1992-10-29 臼井国際産業株式会社 Radiator shutter and blades used therein

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