KR940022409A - 자기기록매체 - Google Patents
자기기록매체 Download PDFInfo
- Publication number
- KR940022409A KR940022409A KR1019940004529A KR19940004529A KR940022409A KR 940022409 A KR940022409 A KR 940022409A KR 1019940004529 A KR1019940004529 A KR 1019940004529A KR 19940004529 A KR19940004529 A KR 19940004529A KR 940022409 A KR940022409 A KR 940022409A
- Authority
- KR
- South Korea
- Prior art keywords
- magnetic recording
- group
- lubricant
- recording medium
- ferromagnetic metal
- Prior art date
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
- G11B5/7257—Perfluoropolyether lubricant
-
- 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
-
- 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
- Lubricants (AREA)
- Magnetic Record Carriers (AREA)
Abstract
본 발명은 비자기기부 및 그위에 형성된 강자성금속층의 자기기록층으로 이루어진 자기기록매체와 관련한 녹발생문제를 해결함에 그 목적을 지닌 바, 상기 문제점은, 비자기지지체, 자기기록층으로서 강자성 금속박막 및 윤활층으로 이루어지고, 윤활층이 극성퍼플루오로기를 지닌 제1윤활제와 다음식
으로 표현된 제2윤활제의 혼합물을 함유하는 것을 특징으로 하는 자기기록매체에 의해 달성된다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (4)
- 비자기지지체, 지지체위에 형성된 자기기록층 및 강자성금속박막 위의 윤활층으로 이루어지며, 윤활층의 다음식B-(C3F6O3)mC2F4-A(식중, A는 카르복실기, CH3, C2H5, CF3및 C2F5중에서 선택된 1종으로 에스테르화된 카르복실기에서 선택되며, B는 F,CH3, C2F5중에서 선택되고, m은 5∼30의 정수)으로 표현되는 화학식을 지닌 제1윤활제와, 다음식(식중, R은 알킬렌, 알켄일렌, 알킨일렌, 불화알킬 및 불화알켄일렌중에서 선택된 탄소수 2이하의 2가기, D는 -OPO(OR4)2, -OP(OR4)2, -OPH(OR4), -PO(OR4 2), -P(OR4)2, -PH(OR4)(각각의 인함유 기중 R4는 같거나 다르고 H, CH3, C2H3, CF3, C2F3중에서 선택된다), 히드록실기 또는 카르복실기, 및 CH3, C2H5, CF3, C2F5로 에스테르화 된 카르복실기 중에서 선택된 극성기이고 R1은 F, CF3, C2F5에서 선택되며, R2, R3는 F, CF3, C2F5, CF(CF3)2, C(CF3)3)에서 선택된다)으로 표현되는 제2윤활제의 혼합물로 이루어지는 것을 특징으로 하는 자기기록매체.
- 제1항에 있어서, 제1윤활제와 제2윤활제의 중량비는 1.0:0.1∼1.0:1.0 사이인 것을 특징으로 하는 자기기록매체.
- 제1항 또는 제2항에 있어서, 상기 자기기록층은 강자성금속박막으로 형성된 것을 특징으로 하는 자기기록매체.
- 제1항 또는 제2항에 있어서, 상기 자기기록층은 강자성금속박막으로 형성되고, 상기 제3윤활제를 제1, 제2윤활제의 총량을 기준으로 해서 50% 이하의 비율로 윤활층에 함유하고, 상기 제3윤활제는 RPO4H2(R은 탄소수 8∼20인 직쇄알킬기 혹은 이것의 불소화기)로 표현된 비극 성퍼플루오로에테르, 직쇄 퍼플루오로카르복실산 혹은 R1(R1은 탄소수 5이하의 직쇄알킬기 혹은 이것의 불소화알킬)로 에스테르화된 에스테르로 이루어진 군으로 선택되는 것을 특징으로 하는 자기기록매체.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7280693 | 1993-03-09 | ||
JP93-72806 | 1993-03-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR940022409A true KR940022409A (ko) | 1994-10-20 |
KR0140339B1 KR0140339B1 (ko) | 1998-06-01 |
Family
ID=13500014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940004529A KR0140339B1 (ko) | 1993-03-09 | 1994-03-09 | 자기기록매체 |
Country Status (4)
Country | Link |
---|---|
US (1) | US5512373A (ko) |
EP (1) | EP0616321B1 (ko) |
KR (1) | KR0140339B1 (ko) |
DE (1) | DE69414740T2 (ko) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE518827C2 (sv) | 1999-02-17 | 2002-11-26 | Altitun Ab | Metod för karakterisering av en avstämbar laser |
JP5445947B2 (ja) * | 2007-11-19 | 2014-03-19 | 株式会社Moresco | 潤滑剤並びに磁気ディスク |
US20100006595A1 (en) * | 2008-07-11 | 2010-01-14 | Seagate Technology Llc | Vacuum spray coating of lubricant for magnetic recording media |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5687236A (en) * | 1979-12-14 | 1981-07-15 | Hitachi Maxell Ltd | Magnetic recording medium |
JPS6010368A (ja) * | 1983-06-30 | 1985-01-19 | Fujitsu Ltd | アドレス変換バツフア制御方式 |
JPS62236135A (ja) * | 1986-04-08 | 1987-10-16 | Hitachi Maxell Ltd | 磁気記録媒体 |
JP2550031B2 (ja) * | 1986-09-10 | 1996-10-30 | 株式会社日立製作所 | 磁気記録媒体 |
JPH07105035B2 (ja) * | 1989-04-06 | 1995-11-13 | 松下電器産業株式会社 | 磁気記録媒体およびその製造方法 |
JP2680169B2 (ja) * | 1989-07-11 | 1997-11-19 | 富士写真フイルム株式会社 | 磁気記録媒体 |
US5268227A (en) * | 1989-07-14 | 1993-12-07 | Fuji Photo Film Co., Ltd. | Magnetic recording medium comprising a ferromagnetic metallic then film having a top coat of (a) a hydrocarbonsulfuric or hydrocarbonsulfonic acid or salt and (b) a fluorinated polyether |
US5230964A (en) * | 1989-10-05 | 1993-07-27 | The Dow Chemical Company | Magnetic recording media a comprising magnetic particles binder and (fluorinated phenoxy)(3-perfluoroalkylphenoxy)-cyclic phosphazene lubricant |
JP2663405B2 (ja) * | 1990-05-25 | 1997-10-15 | トキコ株式会社 | 構造物の制振装置 |
US5128216A (en) * | 1990-06-26 | 1992-07-07 | Digital Equipment Corporation | Lubricants for magnetic media |
JPH0474313A (ja) * | 1990-07-16 | 1992-03-09 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
US5188747A (en) * | 1990-09-04 | 1993-02-23 | Matsushita Electric Industrial Co., Ltd. | Fluorine-containing lubricant compounds |
JPH0512656A (ja) * | 1991-07-05 | 1993-01-22 | Konica Corp | 磁気記録媒体 |
-
1994
- 1994-03-09 US US08/208,756 patent/US5512373A/en not_active Expired - Lifetime
- 1994-03-09 DE DE69414740T patent/DE69414740T2/de not_active Expired - Fee Related
- 1994-03-09 EP EP94301678A patent/EP0616321B1/en not_active Expired - Lifetime
- 1994-03-09 KR KR1019940004529A patent/KR0140339B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR0140339B1 (ko) | 1998-06-01 |
EP0616321A1 (en) | 1994-09-21 |
EP0616321B1 (en) | 1998-11-25 |
DE69414740D1 (de) | 1999-01-07 |
US5512373A (en) | 1996-04-30 |
DE69414740T2 (de) | 1999-04-15 |
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FPAY | Annual fee payment |
Payment date: 20070223 Year of fee payment: 10 |
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