KR870000684A - 자기기록 디스크 - Google Patents

자기기록 디스크 Download PDF

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Publication number
KR870000684A
KR870000684A KR1019860003873A KR860003873A KR870000684A KR 870000684 A KR870000684 A KR 870000684A KR 1019860003873 A KR1019860003873 A KR 1019860003873A KR 860003873 A KR860003873 A KR 860003873A KR 870000684 A KR870000684 A KR 870000684A
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KR
South Korea
Prior art keywords
magnetic recording
fatty acid
melting point
stearate
acid ester
Prior art date
Application number
KR1019860003873A
Other languages
English (en)
Other versions
KR940003386B1 (ko
Inventor
아기라 미야게
히도시 나가다니
쯔기히로 도이
구니오 미즈시마
아기도 시게모도
Original Assignee
히다찌마구세루 가부시기가이샤
나가이 아쯔시
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=15160112&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR870000684(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 히다찌마구세루 가부시기가이샤, 나가이 아쯔시 filed Critical 히다찌마구세루 가부시기가이샤
Publication of KR870000684A publication Critical patent/KR870000684A/ko
Application granted granted Critical
Publication of KR940003386B1 publication Critical patent/KR940003386B1/ko

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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
    • 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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/71—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the 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

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Lubricants (AREA)

Abstract

내용 없음.

Description

자기기록 디스크
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (9)

  1. 비자성 지지체 위에 강자성 미분말과 결합제수지를 주체로 한 자성층을 마련한 자기기록 디스크에 있어서, 상기 자성층중에 융점이 10도C 이하의 낮은 융점지방산 에스텔(A)와 융점이 15도C-60도C의 높은 융점 지방산 에스텔(B)를 함유하는 것을 특징으로 하는 자기 기록 디스크.
  2. 상기 낮은 융점 지방산 에스텔(A)가 n-부틸 올레이트, 헥실-올레이트, n-옥틸 올레이트, 2-에틸헥실 올레이트, 올레일 올레이트, n-부틸 라우레이트, 헵틸 라우레이트, n-부틸 미리스테이트, n-부톡실 에틸 올레이트, 트리메틸로 프로판 트리올레이트로 구성되는 군에서 선택되는 적어도 한 종류로 되는 것을 특징으로 하는 특허청구의 범위 제1항 기재의 자기 기록 데스크.
  3. 상기 낮은 융점 지방산 에스텔(A)가 2-에틸 헥실올 레이트인 것을 특징으로 하는 특허청구의 베위 제2항 개재의 자기 기록 디스크.
  4. 상기 높은 융점 지방산 에스텔(B)가 스테아릴 라우레이트, 세틸 라우레이트, 미리스텔 라우레이트, 스테아릴 미리스테이트, 세틸 미리스테이트, 미리스틸 미리스테이트, 스테아릴 팔미레이트, 세틸 팔미테이트, 미리스틸 팔미레이트, 라우릴 팔미레이트, 세틸 스테아레이트, 미리스틸 스테아테이트, 라우릴 스테아레이트, n-부틸 스테아레이트, 라우릴 미리스테아레이트, 라우릴 라우레이트, n-부록실 에틸 스테아레이트, n-부록실 프로필 스테아레이트, n-펜탁실 스테아레이트로 구성되는 군에서 선택되는 적어도 한 종류인 것을 특징으로 하는 특허청구의 범위 제1항 기재의 자기 기록 디스크.
  5. 상기 높은 융점 지방산 에스텔(B)가 n-부록실 에틸 스테아레이트인 것을 특징으로 하는 특허청구의 범위 제4항 기재의 자기 기록 디스크.
  6. 상기 자성층이 지지체의 양면에 마련되어 있고, 상기 낮은 융점 지방산 (A)와 상기 높은 융점 지방산 에스텔(B)와의 합계량이 상기 결합제 수지에 대해 중량이 10%-100% 함유하는 것을 특징으로 하는 특허청구의 범위 제1항 기재의 자기 기록 디스크.
  7. 상기 낮은 융점 지방산 에스텔(A)와 상기 높은 융점 지방산 에스텔(B)의 배합비율이 중량비로(A):(B)가 (10):(1)∼(1):(10)인 것을 특징으로 하는 특허청구의 범위 제1항 기재의 자기 기록 디스크.
  8. 상기 강자성 미분말이 금속철 분말인 것을 특징으로 하는 특허청구의 범위 제1항의 기재의 자기 기록 디스크.
  9. 상기 결합제 수지가 폴리우레탄 수지를 포함하는 것을 특징으로 하는 특허청구의 범위 제1함 기재의 자기 기록 디스크.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019860003873A 1985-06-20 1986-05-19 자기 디스크 KR940003386B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP135800 1985-06-20
JP60-135800 1985-06-20
JP60135800A JPH0673174B2 (ja) 1985-06-20 1985-06-20 磁気記録媒体

Publications (2)

Publication Number Publication Date
KR870000684A true KR870000684A (ko) 1987-02-19
KR940003386B1 KR940003386B1 (ko) 1994-04-21

Family

ID=15160112

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860003873A KR940003386B1 (ko) 1985-06-20 1986-05-19 자기 디스크

Country Status (5)

Country Link
US (1) US4828925A (ko)
EP (1) EP0206244B1 (ko)
JP (1) JPH0673174B2 (ko)
KR (1) KR940003386B1 (ko)
DE (1) DE3681510D1 (ko)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0736216B2 (ja) * 1985-10-15 1995-04-19 日立マクセル株式会社 磁気デイスク
JPS6439624A (en) * 1987-08-06 1989-02-09 Nisshin Kagaku Kogyo Kk Binder resin for magnetic recording medium
JPH0772938B2 (ja) * 1987-09-30 1995-08-02 富士写真フイルム株式会社 磁気記録媒体
JPH01300420A (ja) * 1988-05-30 1989-12-04 Hitachi Maxell Ltd 磁気記録媒体
DE68919439T2 (de) * 1988-06-06 1995-06-01 Fuji Photo Film Co Ltd Magnetischer Aufzeichnungsträger.
JP2826835B2 (ja) * 1989-03-28 1998-11-18 ティーディーケイ株式会社 磁気記録媒体
JPH04103021A (ja) * 1990-08-22 1992-04-06 Matsushita Electric Ind Co Ltd 磁気記録媒体
JP2989239B2 (ja) * 1990-09-28 1999-12-13 ティーディーケイ株式会社 磁気記録媒体
JP3975367B2 (ja) * 1995-11-22 2007-09-12 富士フイルム株式会社 磁気記録媒体
JP4415293B2 (ja) 2001-02-15 2010-02-17 Ｔｄｋ株式会社 磁気記録媒体および磁気記録再生システム
JP2005018936A (ja) * 2003-06-27 2005-01-20 Sony Corp 磁気抵抗型ヘッド、磁気テープおよび磁気テープ式記録再生システム

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6028052B2 (ja) * 1977-06-01 1985-07-02 ソニー株式会社 磁気記録媒体
JPS582414B2 (ja) * 1978-04-24 1983-01-17 日本ビクター株式会社 磁気記録媒体
JPS5619525A (en) * 1979-07-24 1981-02-24 Fuji Photo Film Co Ltd Magnetic recording medium
JPS5694522A (en) * 1979-12-28 1981-07-31 Fuji Photo Film Co Ltd Magnetic recording medium
JPS5698716A (en) * 1980-01-11 1981-08-08 Victor Co Of Japan Ltd Magnetic recording medium
JPS5698717A (en) * 1980-01-11 1981-08-08 Victor Co Of Japan Ltd Magnetic recording medium
JPS5880132A (ja) * 1981-11-06 1983-05-14 Fuji Photo Film Co Ltd 磁気記録材料
JPS5924438A (ja) * 1982-08-02 1984-02-08 Fuji Photo Film Co Ltd 磁気記録媒体
US4522885A (en) * 1983-02-12 1985-06-11 Hitachi Maxell, Ltd. Magnetic recording medium
JPS59186131A (ja) * 1983-04-06 1984-10-22 Tdk Corp 磁気記録媒体
JPS6028026A (ja) * 1983-07-26 1985-02-13 Fuji Photo Film Co Ltd 磁気記録媒体
JPS6045935A (ja) * 1983-08-24 1985-03-12 Teijin Memorex Kk 磁気記録用媒体
JPS6098527A (ja) * 1983-11-04 1985-06-01 Konishiroku Photo Ind Co Ltd 磁気記録媒体
US4595640A (en) * 1983-12-27 1986-06-17 Minnesota Mining And Manufacturing Company Lubricant system for magnetic recording media containing isomeric acids or alcohols
US4647502A (en) * 1984-09-18 1987-03-03 Hitachi Maxell, Ltd. Magnetic recording medium
JPH0619828B2 (ja) * 1984-12-27 1994-03-16 コニカ株式会社 磁気記録媒体
DE3611296C2 (de) * 1985-04-04 1996-09-12 Fuji Photo Film Co Ltd Magnetisches Aufzeichnungsmedium
US4666784A (en) * 1985-07-26 1987-05-19 Toyo Boseki Kabushiki Kaisha Magnetic recording medium

Also Published As

Publication number Publication date
KR940003386B1 (ko) 1994-04-21
US4828925A (en) 1989-05-09
JPH0673174B2 (ja) 1994-09-14
EP0206244A2 (en) 1986-12-30
EP0206244B1 (en) 1991-09-18
EP0206244A3 (en) 1989-08-30
DE3681510D1 (de) 1991-10-24
JPS61294637A (ja) 1986-12-25

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