JPS5529573A - Production of coating resin - Google Patents

Production of coating resin

Info

Publication number
JPS5529573A
JPS5529573A JP7990279A JP7990279A JPS5529573A JP S5529573 A JPS5529573 A JP S5529573A JP 7990279 A JP7990279 A JP 7990279A JP 7990279 A JP7990279 A JP 7990279A JP S5529573 A JPS5529573 A JP S5529573A
Authority
JP
Japan
Prior art keywords
saponified
parts
coating resin
vinyl ester
resin
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
JP7990279A
Other languages
Japanese (ja)
Other versions
JPS5635681B2 (en
Inventor
Toshio Kagami
Yoshijiro Saito
Shigeru Matsushita
Kunio Iriuchijima
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.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
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 Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP7990279A priority Critical patent/JPS5529573A/en
Publication of JPS5529573A publication Critical patent/JPS5529573A/en
Publication of JPS5635681B2 publication Critical patent/JPS5635681B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Paints Or Removers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE: A vinyl chloride-vinyl ester copolymer is saponified to a prescribed level and purified to produce saed saponified product of vinyl chloride copolymer that is suitably used as a binder resin for magnetic tapes.
CONSTITUTION: One hundred parts by wt of a compolyer of 200W800 average polymerization degree that is composed of 50W80 wt% of venyl chloride, 20W40 wt% of vinyl ester and 0W15 wt% of other monomers is dissolved in about 50W200 parts of an alcohol and saponified using about 2W5 parts of hydrochloric acid as a catalyst at about 40W60°C until the absorption ratio of OH/CH in infrared spectrum exceeds 0.5. Then, the saponified product is decolorized with a halogen gas or organic peroixde and the remaining acid is neutralized. The resin part is extracted in the form of solution or powder and dried to less than 3% alcohol content to give said coating resin.
COPYRIGHT: (C)1980,JPO&Japio
JP7990279A 1979-06-25 1979-06-25 Production of coating resin Granted JPS5529573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7990279A JPS5529573A (en) 1979-06-25 1979-06-25 Production of coating resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7990279A JPS5529573A (en) 1979-06-25 1979-06-25 Production of coating resin

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP11550777A Division JPS5450095A (en) 1977-09-28 1977-09-28 Coating resin and its preparation

Publications (2)

Publication Number Publication Date
JPS5529573A true JPS5529573A (en) 1980-03-01
JPS5635681B2 JPS5635681B2 (en) 1981-08-19

Family

ID=13703205

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7990279A Granted JPS5529573A (en) 1979-06-25 1979-06-25 Production of coating resin

Country Status (1)

Country Link
JP (1) JPS5529573A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008206001A (en) * 2007-02-22 2008-09-04 Epson Toyocom Corp Lamp exciter and atomic oscillator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59195225A (en) * 1983-04-19 1984-11-06 Honda Motor Co Ltd Driving control system of liquid-crystal display device
JPS63257726A (en) * 1987-04-15 1988-10-25 Nippon Denso Co Ltd Liquid crystal display device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2512726A (en) * 1944-09-20 1950-06-27 Union Carbide & Carbon Corp Composition of vinyl chlorideacetate-alcohol copolymer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2512726A (en) * 1944-09-20 1950-06-27 Union Carbide & Carbon Corp Composition of vinyl chlorideacetate-alcohol copolymer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008206001A (en) * 2007-02-22 2008-09-04 Epson Toyocom Corp Lamp exciter and atomic oscillator

Also Published As

Publication number Publication date
JPS5635681B2 (en) 1981-08-19

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