DE2929847A1 - Magnetic recording medium of ferromagnetic thin film tape - with UV-cured epoxide! resin coating contg. lubricant to reduce wear - Google Patents

Magnetic recording medium of ferromagnetic thin film tape - with UV-cured epoxide! resin coating contg. lubricant to reduce wear

Info

Publication number
DE2929847A1
DE2929847A1 DE19792929847 DE2929847A DE2929847A1 DE 2929847 A1 DE2929847 A1 DE 2929847A1 DE 19792929847 DE19792929847 DE 19792929847 DE 2929847 A DE2929847 A DE 2929847A DE 2929847 A1 DE2929847 A1 DE 2929847A1
Authority
DE
Germany
Prior art keywords
lubricant
uv
thin film
recording medium
magnetic recording
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
DE19792929847
Other languages
German (de)
Other versions
DE2929847C2 (en
Inventor
Takashi Suzuki
Isao Sumita
Akihiro Imai
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.)
Panasonic Corp
Original Assignee
Panasonic Corp
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 Panasonic Corp filed Critical Panasonic Corp
Priority to DE19792929847 priority Critical patent/DE2929847C2/de
Publication of DE2929847A1 publication Critical patent/DE2929847A1/en
Application granted granted Critical
Publication of DE2929847C2 publication Critical patent/DE2929847C2/de
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/72Protective coatings, e.g. antistatic, antifriction
    • G11B5/725Protective coatings, e.g. antistatic, antifriction containing a lubricant

Abstract

Magnetic recording medium has a ferromagnetic thin film with a thin coating of UV-cured epoxide resin contg. a lubricant. The coating compsn. pref. contains an uncured epoxide resin (max. 50% of which is a cycloaliphatic resin), aromatic diazonium salts of halide complexes, a gelation inhibitor forming a Lewis acid on UV exposure and a lubricant. Pref. the lubricant is an aliphatic ester of a polyhydric alcohol, modified silicone or modified fluoride oil. The coating increases the wear resistance. The material is esp. useful as video tape and gives satisfactory recording and reproduction, even at high temp. and high humidity.
DE19792929847 1979-07-23 1979-07-23 Expired DE2929847C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792929847 DE2929847C2 (en) 1979-07-23 1979-07-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792929847 DE2929847C2 (en) 1979-07-23 1979-07-23

Publications (2)

Publication Number Publication Date
DE2929847A1 true DE2929847A1 (en) 1981-01-29
DE2929847C2 DE2929847C2 (en) 1981-12-10

Family

ID=6076548

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792929847 Expired DE2929847C2 (en) 1979-07-23 1979-07-23

Country Status (1)

Country Link
DE (1) DE2929847C2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3000948A1 (en) * 1979-01-11 1980-07-24 Minnesota Mining & Mfg Magnetic tape with polyestertraegerfilm and layer and process for the production of magnetic recording tape
DE3213055A1 (en) * 1981-04-13 1982-11-18 Tdk Electronics Co Ltd A magnetic recording medium and method of manufacturing the same
DE3637805A1 (en) * 1985-11-06 1987-07-16 Tdk Corp magnetic record carrier
EP0574930A2 (en) * 1992-06-19 1993-12-22 TDK Corporation Magneto-optical disc

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2451930A1 (en) * 1973-11-02 1975-05-07 Fuji Photo Film Co Ltd Magnetic recording material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2451930A1 (en) * 1973-11-02 1975-05-07 Fuji Photo Film Co Ltd Magnetic recording material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM Technical Disclosure Bulletin, Vol. 7, No. 1, Juni 1964, S. 2 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3000948A1 (en) * 1979-01-11 1980-07-24 Minnesota Mining & Mfg Magnetic tape with polyestertraegerfilm and layer and process for the production of magnetic recording tape
DE3213055A1 (en) * 1981-04-13 1982-11-18 Tdk Electronics Co Ltd A magnetic recording medium and method of manufacturing the same
DE3637805A1 (en) * 1985-11-06 1987-07-16 Tdk Corp magnetic record carrier
US4726990A (en) * 1985-11-06 1988-02-23 Tdk Corporation Magnetic recording medium
EP0574930A2 (en) * 1992-06-19 1993-12-22 TDK Corporation Magneto-optical disc
EP0574930A3 (en) * 1992-06-19 1994-03-16 Tdk Corp

Also Published As

Publication number Publication date
DE2929847C2 (en) 1981-12-10

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Legal Events

Date Code Title Description
OAP Request for examination filed
OD Request for examination
D2 Grant after examination
8328 Change in the person/name/address of the agent

Free format text: SCHWABE, H., DIPL.-ING. SANDMAIR, K., DIPL.-CHEM. DR.JUR. DR.RER.NAT., PAT.-ANW., 8000 MUENCHEN

8320 Willingness to grant licenses declared (paragraph 23)