JPS5538864A - Preparation of highly whith ethylene copolymer saponified product - Google Patents

Preparation of highly whith ethylene copolymer saponified product

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Publication number
JPS5538864A
JPS5538864A JP11337778A JP11337778A JPS5538864A JP S5538864 A JPS5538864 A JP S5538864A JP 11337778 A JP11337778 A JP 11337778A JP 11337778 A JP11337778 A JP 11337778A JP S5538864 A JPS5538864 A JP S5538864A
Authority
JP
Japan
Prior art keywords
unsaturated carboxylic
ethylenic unsaturated
vinyl ester
copolymer
derivative
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
JP11337778A
Other languages
Japanese (ja)
Other versions
JPS6054324B2 (en
Inventor
Fumio Fujita
Shuji Kitamura
Toshibumi Tamura
Tsuneyuki Nagase
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP11337778A priority Critical patent/JPS6054324B2/en
Publication of JPS5538864A publication Critical patent/JPS5538864A/en
Publication of JPS6054324B2 publication Critical patent/JPS6054324B2/en
Expired legal-status Critical Current

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

Abstract

PURPOSE: To obtain the title product by saponification, in an alkaline medium, of a copolymer from ethylene, a vinyl ester, and an ethylenic unsaturated carboxylic acid (or its derivative), in the presence of hydrazine.
CONSTITUTION: The objective product can be obtained by saponification, in an alkaline medium, of a copolymer from ethylene, a vinyl ester, and an ethylenic unsaturated carboxylic acid (or its derivative), in the presence of hydrozine or its derivative. The preferable composition of said copolymer is as follows: (1) a molar ratio vinyl ester (X): ethylenic unsaturated carboxylic acid or its devirative (Y)= 20:80W80:20, (2) Z: (X+Y)=0:100W15:85 here, Z is mole number of the ethylene component. Said vinyl ester is, e.g., vinyl acetate, vinyl stearate. As the ethylenic unsaturated carboxylic acids or their derivatives, are mentioned acrylic acid, malic anhydride, and esters therefrom.
COPYRIGHT: (C)1980,JPO&Japio
JP11337778A 1978-09-13 1978-09-13 Method for producing saponified ethylene copolymer with high whiteness Expired JPS6054324B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11337778A JPS6054324B2 (en) 1978-09-13 1978-09-13 Method for producing saponified ethylene copolymer with high whiteness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11337778A JPS6054324B2 (en) 1978-09-13 1978-09-13 Method for producing saponified ethylene copolymer with high whiteness

Publications (2)

Publication Number Publication Date
JPS5538864A true JPS5538864A (en) 1980-03-18
JPS6054324B2 JPS6054324B2 (en) 1985-11-29

Family

ID=14610738

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11337778A Expired JPS6054324B2 (en) 1978-09-13 1978-09-13 Method for producing saponified ethylene copolymer with high whiteness

Country Status (1)

Country Link
JP (1) JPS6054324B2 (en)

Also Published As

Publication number Publication date
JPS6054324B2 (en) 1985-11-29

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