DE3538836A1 - Magnetisches aufzeichnungsmaterial - Google Patents

Magnetisches aufzeichnungsmaterial

Info

Publication number
DE3538836A1
DE3538836A1 DE19853538836 DE3538836A DE3538836A1 DE 3538836 A1 DE3538836 A1 DE 3538836A1 DE 19853538836 DE19853538836 DE 19853538836 DE 3538836 A DE3538836 A DE 3538836A DE 3538836 A1 DE3538836 A1 DE 3538836A1
Authority
DE
Germany
Prior art keywords
organic compound
cooh
carbon atoms
magnetic recording
film
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
DE19853538836
Other languages
German (de)
English (en)
Other versions
DE3538836C2 (forum.php
Inventor
Yoshiaki Neyagawa Kai
Hisayo Hirakata Kitamaki
Masaru Kawanishi Odagiri
Takashi Takatsuki Suzuki
Akio Suita Tomago
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial 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
Priority claimed from JP59229416A external-priority patent/JPS61107527A/ja
Priority claimed from JP59229418A external-priority patent/JPS61107529A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE3538836A1 publication Critical patent/DE3538836A1/de
Application granted granted Critical
Publication of DE3538836C2 publication Critical patent/DE3538836C2/de
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/725—Protective coatings, e.g. anti-static or antifriction containing a lubricant, e.g. organic compounds
    • G11B5/7253—Fluorocarbon lubricant
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
    • Y10T428/31544—Addition polymer is perhalogenated

Landscapes

  • Magnetic Record Carriers (AREA)
DE19853538836 1984-10-31 1985-10-31 Magnetisches aufzeichnungsmaterial Granted DE3538836A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59229416A JPS61107527A (ja) 1984-10-31 1984-10-31 磁気記録媒体
JP59229418A JPS61107529A (ja) 1984-10-31 1984-10-31 磁気記録媒体

Publications (2)

Publication Number Publication Date
DE3538836A1 true DE3538836A1 (de) 1986-04-30
DE3538836C2 DE3538836C2 (forum.php) 1988-08-04

Family

ID=26528782

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853538836 Granted DE3538836A1 (de) 1984-10-31 1985-10-31 Magnetisches aufzeichnungsmaterial

Country Status (2)

Country Link
US (1) US4647507A (forum.php)
DE (1) DE3538836A1 (forum.php)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0239028A3 (en) * 1986-03-20 1988-11-09 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium
EP0311473A1 (fr) * 1987-09-16 1989-04-12 Applications Et Transferts De Technologies Avancees Atta Nouveaux dérivés fluorés d'acides aminés, utilisables en particulier comme agents tensioactifs ou contensioactifs, et préparations à usage biomédical comprenant ces dérivés
EP0345697A3 (en) * 1988-06-06 1990-12-27 Fuji Photo Film Co., Ltd. Magnetic recording medium
EP0486142A1 (en) * 1990-11-13 1992-05-20 Matsushita Electric Industrial Co., Ltd. Fluorine containing compounds and their use as lubricants in magnetic recording media

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62117135A (ja) * 1985-11-18 1987-05-28 Fuji Photo Film Co Ltd 磁気記録媒体
CA1297738C (en) * 1986-01-09 1992-03-24 Hirofumi Kondo Magnetic recording medium
JPH0777023B2 (ja) * 1986-04-03 1995-08-16 富士写真フイルム株式会社 磁気記録媒体
US4840843A (en) * 1986-10-17 1989-06-20 Fuji Photo Film Co., Ltd. Magnetic recording medium
US5061562A (en) * 1987-09-22 1991-10-29 Fuji Photo Film Co., Ltd. Method for preparing a magnetic recording medium and a magnetic disk using the same
JP2913684B2 (ja) * 1989-08-28 1999-06-28 ソニー株式会社 磁気記録媒体
JPH03105719A (ja) * 1989-09-20 1991-05-02 Hitachi Ltd 磁気記録媒体及びそれを用いた磁気記憶装置
WO1999003954A1 (en) 1997-07-16 1999-01-28 Matsushita Electric Industrial Co., Ltd. Lubricant composition, magnetic recording medium, and process for producing magnetic recording medium
KR19990077988A (ko) * 1998-03-19 1999-10-25 이데이 노부유끼 자기기록매체및그의제작방법

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2740730A1 (de) * 1976-09-10 1978-03-16 Ball Brothers Res Corp Ueberzogenes substrat und mittel zur verleihung von oberflaechenabriebfestigkeit
DE2839378B1 (de) * 1978-09-11 1979-11-15 Basf Ag Magnetischer Aufzeichnungstraeger

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5234924B2 (forum.php) * 1974-10-02 1977-09-06
US4268556A (en) * 1979-01-08 1981-05-19 Minnesota Mining And Manufacturing Company Rigid magnetic recording disks lubricated with fluorinated telechelic polyether
JPS5625232A (en) * 1979-08-06 1981-03-11 Sony Corp Magnetic recording medium
US4505990A (en) * 1983-07-14 1985-03-19 Hercules Incorporated Coating compositions
US4529659A (en) * 1983-11-05 1985-07-16 Nippon Telegraph & Telephone Public Corporation Magnetic recording member and process for manufacturing the same
JPS60109028A (ja) * 1983-11-17 1985-06-14 Hitachi Maxell Ltd 磁気記録媒体

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2740730A1 (de) * 1976-09-10 1978-03-16 Ball Brothers Res Corp Ueberzogenes substrat und mittel zur verleihung von oberflaechenabriebfestigkeit
DE2839378B1 (de) * 1978-09-11 1979-11-15 Basf Ag Magnetischer Aufzeichnungstraeger

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0239028A3 (en) * 1986-03-20 1988-11-09 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium
EP0311473A1 (fr) * 1987-09-16 1989-04-12 Applications Et Transferts De Technologies Avancees Atta Nouveaux dérivés fluorés d'acides aminés, utilisables en particulier comme agents tensioactifs ou contensioactifs, et préparations à usage biomédical comprenant ces dérivés
EP0345697A3 (en) * 1988-06-06 1990-12-27 Fuji Photo Film Co., Ltd. Magnetic recording medium
EP0486142A1 (en) * 1990-11-13 1992-05-20 Matsushita Electric Industrial Co., Ltd. Fluorine containing compounds and their use as lubricants in magnetic recording media

Also Published As

Publication number Publication date
US4647507A (en) 1987-03-03
DE3538836C2 (forum.php) 1988-08-04

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee