JPS5450095A - Coating resin and its preparation - Google Patents

Coating resin and its preparation

Info

Publication number
JPS5450095A
JPS5450095A JP11550777A JP11550777A JPS5450095A JP S5450095 A JPS5450095 A JP S5450095A JP 11550777 A JP11550777 A JP 11550777A JP 11550777 A JP11550777 A JP 11550777A JP S5450095 A JPS5450095 A JP S5450095A
Authority
JP
Japan
Prior art keywords
vinyl chloride
resin
vinyl
coating resin
dissolving
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
JP11550777A
Other languages
Japanese (ja)
Other versions
JPS563393B2 (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 JP11550777A priority Critical patent/JPS5450095A/en
Publication of JPS5450095A publication Critical patent/JPS5450095A/en
Publication of JPS563393B2 publication Critical patent/JPS563393B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To prepare a coating resin having excellent comtibility with thermosetting resins and solubility in organic solvents, and useful as a binder resin of magnetic recording tape, by dissolving a vinyl chloride-vinyl ester copolymer in a solvent, and saponifying the copolyme to attain a specific IR absorption spectrum.
CONSTITUTION: A vinyl chloride copolymer composed of 50W80wt% of vinyl chloride, 20W40wt% of a vinyl ester (e.g. vinyl acetate), and 0W15wt% of other monomer copolymerizable with vinyl chloride, and having an average polymerization degree of 200W800, is saponified to obtain a resin having an IR absorption spectrum wherein the ratio of the OH absorption peak (3450 cm-1) to the CH absorption peak (2930 cm-1) is ≥0.5; and the resin is neutralized and decolored to obtain the objective coating resin. The saponification is conducted by dissolving the vinyl chloride copolymer (100 parts by weight)into methanol, etc. (50W200 patts), and heating the solution at 40W60°C for about 50 hours in the presence of HCI catalyst. The decoloration is usually carried out by introducing C12 gas into the solution of the saponified polymer, however, treatment with an organic peroxide is also acceptable
COPYRIGHT: (C)1979,JPO&Japio
JP11550777A 1977-09-28 1977-09-28 Coating resin and its preparation Granted JPS5450095A (en)

Priority Applications (1)

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

Applications Claiming Priority (1)

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

Related Child Applications (1)

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

Publications (2)

Publication Number Publication Date
JPS5450095A true JPS5450095A (en) 1979-04-19
JPS563393B2 JPS563393B2 (en) 1981-01-24

Family

ID=14664221

Family Applications (1)

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

Country Status (1)

Country Link
JP (1) JPS5450095A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5885925A (en) * 1981-11-16 1983-05-23 Tdk Corp Magnetic recording medium
JPH03130916A (en) * 1989-10-30 1991-06-04 Tdk Corp Magnetic recording medium and its production

Citations (2)

* 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
JPS5196303A (en) * 1975-02-20 1976-08-24 Jiseitoryono seizoho

Patent Citations (2)

* 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
JPS5196303A (en) * 1975-02-20 1976-08-24 Jiseitoryono seizoho

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5885925A (en) * 1981-11-16 1983-05-23 Tdk Corp Magnetic recording medium
JPS6240765B2 (en) * 1981-11-16 1987-08-31 Tdk Electronics Co Ltd
JPH03130916A (en) * 1989-10-30 1991-06-04 Tdk Corp Magnetic recording medium and its production
JPH0514326B2 (en) * 1989-10-30 1993-02-24 Tdk Electronics Co Ltd

Also Published As

Publication number Publication date
JPS563393B2 (en) 1981-01-24

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