KR940022407A - 자기 기록 매체 - Google Patents

자기 기록 매체 Download PDF

Info

Publication number
KR940022407A
KR940022407A KR1019940005591A KR19940005591A KR940022407A KR 940022407 A KR940022407 A KR 940022407A KR 1019940005591 A KR1019940005591 A KR 1019940005591A KR 19940005591 A KR19940005591 A KR 19940005591A KR 940022407 A KR940022407 A KR 940022407A
Authority
KR
South Korea
Prior art keywords
copolymer resin
coating composition
magnetic
magnetic coating
component
Prior art date
Application number
KR1019940005591A
Other languages
English (en)
Other versions
KR100232244B1 (ko
Inventor
버나드 말론 챨스
리차드 하비 제임스
페르난도 니콜리니 클라우디오
Original Assignee
카렌 엘.죤슨
유니온 카바이드 케미칼즈 앤드 플라스틱스 테크놀러지 코포레이션
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 카렌 엘.죤슨, 유니온 카바이드 케미칼즈 앤드 플라스틱스 테크놀러지 코포레이션 filed Critical 카렌 엘.죤슨
Publication of KR940022407A publication Critical patent/KR940022407A/ko
Application granted granted Critical
Publication of KR100232244B1 publication Critical patent/KR100232244B1/ko

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
    • G11B5/68—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
    • G11B5/702—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 bonding agent
    • 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
    • G11B5/702—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 bonding agent
    • G11B5/7023—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 bonding agent containing polyesters, polyethers, silicones, polyvinyl resins, polyacrylresins or epoxy resins
    • 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
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • 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]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31609—Particulate metal or metal compound-containing
    • 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]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31935—Ester, halide or nitrile of addition polymer

Landscapes

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

Abstract

본 발명은 기판의 표면에 자기층을 형성하여 자기 기록 매체(예:기록 테이프)를 제조하기 위해 사용되는 피복 조성물에 관한 것으로서, 특징적인 성분은 공중합체 수지이다. 공중합체 수지는 (1) 비닐 클로라이드,(2) 비닐 아세테이트 및 (3) 설폰산 그룹 또는 이의 금속염 또는 아민염을 갖는 아크릴레이트 또는 메타크릴레이트를 특별한 비율로 포함하는 공단량체들의 공중합체 의해 수득되는 공중합체이다. 이 공중합체 수지는 증진된 분산 특성과 자기 특성을 부여하면서 동시에 바람직한 레올러지 특성과 열안정성을 부여하는 이점이 있다.

Description

자기 기록 매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (10)

  1. 유기 용매에 용해되거나 분산되는 것으로서, 비닐 클로라이드(a), 비닐 아세테이트(b) 및 설폰산 그룹(-SO3H) 또는 이의 금속염 또는 아민염을 갖는 아크릴레이트 또는 메타크릴레이트 부분(moiety)(설포메틸 메타크릴레이트 제외)(c)인 단량체 부분을 포함하는 공중합체 수지(A) 및 비히클로서의 공중합체 수지에 분산되는 강자성 물질의 입자(B)를 포함하는 자기 기록 매체용 자기 피복 조성물.
  2. 기판; 및 기판 위에 존재하는 제1항에 따른 공중합체 수지가 자기 피복층의 분산 특성을 증진시키기에 충분한 양으로 포함된 경화된 결합제 시스템과 자기 입자를 포함하는 자기 기록층을 포함하는 자기 기록 매체.
  3. 제1항에 있어서, 성분(A)인 공중합체 수지의 평균 중합도가 200 내지 800인 자기 피복 조성물.
  4. 제1항에 있어서, 성분(A)인 공중합체 수지의 양이 성분(B)인 강자성 물질의 입자 100중량부 당 8 내지 30중량부의 범위인 자기 피복 조성물.
  5. 제1항에 있어서, 아크릴레이트 또는 메타크릴레이트의 일반식이 CH2=C(CH3)-CO-O-C2H4-SO3X(여기서, X는 수소, 알칼리 금속 또는 양성자화 아민이다)인 자기 피복 조성물.
  6. 유기 용매에 용해되거나 분산되는 것으로서, 제1단량체 부분으로서, 구조식 -CH2-CHCl-의 비닐 클로라이드(a) 65 내지 95중량%; 제2단량체 부분으로서, 구조식 -CH2CH(O-CO-CH3)-의 비닐 아세테이트(b) 3 내지 15중량%; 및 제3단량체 부분으로서, 설폰산 그룹(-SO3H) 또는 이의 금속염 또는 아민염을 갖는 아크릴레이트 또는 메타크릴레이트(설포메틸 메타그릴레이트 제외)(c) 0.1 내지 5중량%를 포함하는 공중합체 수지(A) 및 비히클로서의 공중합체 수지에 분산되는 강유전성 물질의 입자(B)를 포함하는 자기 기록 매체용 자기 피복 조성물.
  7. 기판; 및 기판위에 존재하는 제6항에 따른 공중합체 수지가 자기 피복층의 분산 특성을 증진시키기에 충분한 양으로 포함된 경화된 결합제 시스템과 자기 입자를 포함하는 자기 기록층을 포함하는 자기 기록 매체.
  8. 제6항에 있어서, 성분(A)인 공중합체 수지의 평균 중합도가 200 내지 800인 자기 피복 조성물.
  9. 제6항에 있어서, 성분(A)인 공중합체 수지의 양이 성분(B)인 강자성 물질의 입자 100중량부 당 8 내지 30중량부의 범위인 자기 피복 조성물.
  10. 제6항에 있어서, 아크릴레이트 또는 메타크릴레이트의 일반식이 CH2=C(CH3)-CO-O-C2H4-SO3X(여기서, X는 수소, 알칼리 금속 또는 양성자화 아민이다)인 자기 피복 조성물.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940005591A 1993-03-22 1994-03-21 자기 기록 매체 KR100232244B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3497393A 1993-03-22 1993-03-22
US8/034,973 1993-03-22

Publications (2)

Publication Number Publication Date
KR940022407A true KR940022407A (ko) 1994-10-20
KR100232244B1 KR100232244B1 (ko) 1999-12-01

Family

ID=21879823

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940005591A KR100232244B1 (ko) 1993-03-22 1994-03-21 자기 기록 매체

Country Status (8)

Country Link
US (1) US5531914A (ko)
EP (1) EP0626678B1 (ko)
JP (1) JPH06340715A (ko)
KR (1) KR100232244B1 (ko)
CN (1) CN1052026C (ko)
CA (1) CA2119498A1 (ko)
DE (1) DE69413598T2 (ko)
ES (1) ES2124806T3 (ko)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1068132C (zh) * 1996-02-02 2001-07-04 刘中原 用于涂布高矫顽力预付磁卡的磁浆及其制备方法
US6455146B1 (en) 2000-10-31 2002-09-24 Sika Corporation Expansible synthetic resin baffle with magnetic attachment
KR20040018476A (ko) * 2001-07-18 2004-03-03 미쯔이카가쿠 가부시기가이샤 내광성이 뛰어난 기록매체 및 그 제조방법
US20060283989A1 (en) * 2005-06-20 2006-12-21 David B. Lytle Products, Inc. Method and device for applying wall coatings
JP5298455B2 (ja) * 2006-06-07 2013-09-25 コニカミノルタ株式会社 非水系インクジェットインク及びインクジェット記録方法
JP2008274034A (ja) * 2007-04-26 2008-11-13 Konica Minolta Ij Technologies Inc 非水系インクジェットインク及びインクジェット記録方法
JP5245361B2 (ja) * 2007-11-06 2013-07-24 コニカミノルタＩｊ株式会社 非水系インクジェットインク及びインクジェット記録方法
JP5176670B2 (ja) * 2008-04-23 2013-04-03 コニカミノルタＩｊ株式会社 非水系インクジェットインク及びインクジェット記録方法
CN103333281B (zh) * 2013-06-20 2015-07-15 无锡洪汇新材料科技股份有限公司 输血管/输液袋用树脂及其制备方法
CN109735215B (zh) * 2018-12-19 2021-04-13 北矿科技股份有限公司 一种磁性层及其制备方法

Family Cites Families (95)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2607710A (en) * 1949-04-02 1952-08-19 Minnesota Mining & Mfg Abrasion-resistant magnetic recording tape
US3983302A (en) * 1972-05-01 1976-09-28 Cbs Inc. Magnetic recording medium
US4152485A (en) * 1977-08-05 1979-05-01 Toyo Boseki Kabushiki Kaisha Magnetic recording medium
JPS54119904A (en) * 1978-03-10 1979-09-18 Tdk Corp Magnetic recording medium
JPS54138409A (en) * 1978-04-19 1979-10-26 Tdk Corp Magnetic recording medium
JPS5570936A (en) * 1978-11-24 1980-05-28 Tdk Corp Magnetic recording media
JPS567233A (en) * 1979-06-25 1981-01-24 Tdk Corp Magnetic recording medium
JPS5845086B2 (ja) * 1979-08-17 1983-10-07 ティーディーケイ株式会社 磁気記録媒体
US4436875A (en) * 1979-10-25 1984-03-13 The Dow Chemical Company Curable polymeric compositions
JPS56137522A (en) * 1980-03-26 1981-10-27 Fuji Photo Film Co Ltd Magnetic recording material
JPS5727429A (en) * 1980-07-22 1982-02-13 Tdk Corp Magnetic recording medium
JPS5730121A (en) * 1980-07-31 1982-02-18 Tdk Corp Magnetic recording medium
JPS57133521A (en) * 1981-02-10 1982-08-18 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57169926A (en) * 1981-04-14 1982-10-19 Tdk Corp Magnetic recording medium
JPS57179943A (en) * 1981-04-27 1982-11-05 Tdk Corp High-density magnetic recording medium
JPS5812131A (ja) * 1981-07-13 1983-01-24 Sony Corp 磁気記録媒体
US4411957A (en) * 1981-09-03 1983-10-25 Tdk Electronics Co., Ltd. Magnetic recording medium
US4423115A (en) * 1981-10-23 1983-12-27 Tdk Electronics Co., Ltd. Magnetic recording medium
US4460653A (en) * 1981-11-16 1984-07-17 Tdk Corporation Magnetic recording medium
JPS58114330A (ja) * 1981-12-28 1983-07-07 Denki Kagaku Kogyo Kk 磁気記録媒体用磁性塗料
JPS58182130A (ja) * 1982-04-20 1983-10-25 Fuji Photo Film Co Ltd 磁気記録媒体
JPS58211320A (ja) * 1982-06-03 1983-12-08 Fuji Photo Film Co Ltd 磁気記録体
JPS595424A (ja) * 1982-07-01 1984-01-12 Sony Corp 磁気記録媒体
JPS595423A (ja) * 1982-07-01 1984-01-12 Sony Corp 磁気記録媒体
JPS5924435A (ja) * 1982-07-30 1984-02-08 Fuji Photo Film Co Ltd 磁気記録体
JPS5930234A (ja) * 1982-08-10 1984-02-17 Fuji Photo Film Co Ltd 磁気記録媒体
DE3373584D1 (en) * 1982-09-30 1987-10-15 Hitachi Maxell Magnetic recording medium
JPS5971129A (ja) * 1982-10-18 1984-04-21 Fuji Photo Film Co Ltd 磁気記録媒体
JPS59104725A (ja) * 1982-12-06 1984-06-16 Fuji Photo Film Co Ltd 磁気記録媒体
US4576726A (en) * 1983-01-25 1986-03-18 Toyo Tire & Rubber Company Limited Magnetic coating composition
JPH0654536B2 (ja) * 1983-02-04 1994-07-20 富士写真フイルム株式会社 磁気記録媒体
JPS59175022A (ja) * 1983-03-25 1984-10-03 Fuji Photo Film Co Ltd 磁気記録媒体
DE3413080A1 (de) * 1983-04-07 1984-10-11 Fuji Photo Film Co., Ltd., Minamiashigara, Kanagawa Magnetisches aufzeichnungsmaterial
JPS59186121A (ja) * 1983-04-07 1984-10-22 Fuji Photo Film Co Ltd 磁気記録媒体
JPS59218632A (ja) * 1983-05-27 1984-12-08 Fuji Photo Film Co Ltd 磁気記録媒体
JPS6043218A (ja) * 1983-08-18 1985-03-07 Fuji Photo Film Co Ltd 磁気記録体
JPS6055513A (ja) * 1983-09-05 1985-03-30 Fuji Photo Film Co Ltd 磁気記録媒体
JPS6055511A (ja) * 1983-09-06 1985-03-30 Toshiba Corp 磁気記録媒体
JPS6057527A (ja) * 1983-09-08 1985-04-03 Fuji Photo Film Co Ltd 磁気記録媒体
JPS6079522A (ja) * 1983-10-04 1985-05-07 Sony Corp 磁気記録媒体
JPS6095722A (ja) * 1983-10-28 1985-05-29 Sony Corp 磁気記録媒体
JPS6098520A (ja) * 1983-11-01 1985-06-01 Fuji Photo Film Co Ltd 磁気記録媒体
JPS60101161A (ja) * 1983-11-08 1985-06-05 Nippon Zeon Co Ltd 磁気塗料用樹脂
JPS60125920A (ja) * 1983-12-09 1985-07-05 Fuji Photo Film Co Ltd 磁気記録媒体
JPS60144311A (ja) * 1983-12-29 1985-07-30 Nisshin Kagaku Kogyo Kk 合成樹脂の製造方法
DE3401771A1 (de) * 1984-01-19 1985-08-01 Agfa-Gevaert Ag, 5090 Leverkusen Magnetisches speichermedium
JPH0619822B2 (ja) * 1984-04-19 1994-03-16 ティーディーケイ株式会社 磁気記録媒体
JPS60235814A (ja) * 1984-05-08 1985-11-22 Nippon Zeon Co Ltd 磁性塗料用樹脂
JPS6116016A (ja) * 1984-07-02 1986-01-24 Tdk Corp 磁気記録媒体
US4600521A (en) * 1984-10-09 1986-07-15 Nippon Zeon Co., Ltd. Electron-beam reactive magnetic coating composition for magnetic recording media
JPS61113125A (ja) * 1984-11-06 1986-05-31 Fuji Photo Film Co Ltd 磁気記録媒体
DE3602257C2 (de) * 1985-01-28 1995-06-14 Hitachi Maxell Magnetisches Aufzeichnungsmedium
US4748081A (en) * 1985-02-23 1988-05-31 Victor Company Of Japan, Ltd. Magnetic recording medium having an improved magnetic layer using particulate alpha-Fe2 O3 and carbon black
US4798755A (en) * 1985-05-01 1989-01-17 Fuji Photo Film Co., Ltd. Magnetic recording medium
JPS626429A (ja) * 1985-07-02 1987-01-13 Sony Corp 磁気記録媒体
US4731292A (en) * 1985-11-18 1988-03-15 Konishiroku Photo Industry Co., Ltd. Magnetic recording medium
US4743501A (en) * 1985-11-27 1988-05-10 Tdk Corporation Magnetic recording medium
JPS62146433A (ja) * 1985-12-20 1987-06-30 Fuji Photo Film Co Ltd 磁気記録媒体
JPS62146432A (ja) * 1985-12-20 1987-06-30 Fuji Photo Film Co Ltd 磁気記録媒体
JPS62159335A (ja) * 1986-01-08 1987-07-15 Fuji Photo Film Co Ltd 磁気記録媒体
US5034271A (en) * 1986-02-28 1991-07-23 Fuji Photo Film Co., Ltd. Magnetic recording medium
JPH0752504B2 (ja) * 1986-04-18 1995-06-05 富士写真フイルム株式会社 磁気記録媒体
JPS62248126A (ja) * 1986-04-19 1987-10-29 Fuji Photo Film Co Ltd 長尺状磁気記録媒体
JPH0743818B2 (ja) * 1986-05-07 1995-05-15 松下電器産業株式会社 磁気記録媒体
US4783370A (en) * 1986-05-28 1988-11-08 Minnesota Mining And Manufacturing Company Recording media containing alkyl acrylate copolymers
US4837082A (en) * 1986-07-31 1989-06-06 Minnesota Mining And Manufacturing Company Flexible magnetic recording media and a method using a stable fluid reactive dispersion to prepare magnetic recording media
US4876149A (en) * 1986-07-31 1989-10-24 Minnesota Mining And Manufacturing Company Magnetic recording media and a method using a stable fluid reactive dispersion in preparing magnetic recording media
JPH0785305B2 (ja) * 1986-08-05 1995-09-13 富士写真フイルム株式会社 磁気記録媒体
JPS6384879A (ja) * 1986-09-25 1988-04-15 Fuji Photo Film Co Ltd 研磨テ−プ
US4801505A (en) * 1986-10-20 1989-01-31 Fuji Photo Film Co., Ltd. Magnetic recording medium
US4847156A (en) * 1986-10-20 1989-07-11 Fuji Photo Film Co., Ltd. Magnetic recording medium
JPH0626006B2 (ja) * 1987-03-25 1994-04-06 富士写真フイルム株式会社 研磨テ−プ
JPS63261529A (ja) * 1987-04-20 1988-10-28 Fuji Photo Film Co Ltd 磁気記録媒体
US5153063A (en) * 1987-04-22 1992-10-06 Fuji Photo Film Co., Ltd. Magnetic recording medium having a vinyl-chloride resin and a urethane resin binder system each of which resins contain three percent or less of a low molecular weight resin fraction
JPH0679370B2 (ja) * 1987-05-06 1994-10-05 富士写真フイルム株式会社 磁気記録媒体
US5024892A (en) * 1987-05-08 1991-06-18 Fuji Photo Film Co., Ltd. Magnetic recording medium having a binder comprising a copolymer which includes a vinyl compound having a dialkylaminoalkyl group
JPS6439624A (en) * 1987-08-06 1989-02-09 Nisshin Kagaku Kogyo Kk Binder resin for magnetic recording medium
JP2646244B2 (ja) * 1987-09-21 1997-08-27 富士写真フイルム株式会社 磁気記録媒体
JP2502639B2 (ja) * 1987-12-09 1996-05-29 日信化学工業株式会社 磁気記録媒体
US5153071A (en) * 1988-04-19 1992-10-06 Fuji Photo Film Co., Ltd. Magnetic recording medium wherein the magnetic layer has as the binder system a vinyl chloride copolymer and a polyether polyurethane resin which contains a ring structure
JP2843038B2 (ja) * 1988-09-24 1999-01-06 日立マクセル株式会社 磁気記録媒体
US4983311A (en) * 1988-10-26 1991-01-08 Nippon Zeon Co., Ltd. Magnetic coating and magnetic recording medium
JP2655340B2 (ja) * 1989-02-28 1997-09-17 富士写真フイルム株式会社 磁気記録媒体
JP2821755B2 (ja) * 1989-02-28 1998-11-05 日本ゼオン株式会社 磁気記録媒体
US5085941A (en) * 1989-03-01 1992-02-04 Minnesota Mining And Manufacturing Company Magnetic recording medium with hydroxy functional, sulfonated binder system
US5093192A (en) * 1989-03-28 1992-03-03 Konica Corporation Magnetic recording medium
US5066539A (en) * 1989-03-29 1991-11-19 Sony Corporation Magnetic recording medium wherein the magnetic layer contains components having specified polar groups, particle diameters and surface areas or which are in specific relative ratios
JPH031315A (ja) * 1989-05-29 1991-01-08 Fuji Photo Film Co Ltd 磁気記録媒体
JP2632214B2 (ja) * 1989-06-08 1997-07-23 富士写真フイルム株式会社 磁気記録媒体
JP2707322B2 (ja) * 1989-06-09 1998-01-28 富士写真フイルム株式会社 フロッピーディスク
US5116683A (en) * 1989-06-14 1992-05-26 Konica Corporation Magnetic recording medium containing a specified ferromagnetic powder, polyurethane resin prepared from specified branched chain diols and a fatty acid ester
US5093172A (en) * 1989-06-26 1992-03-03 Fuji Photo Film Co., Ltd. Magnetic recording medium comprising a vinyl chloride copolymer containing a polar group and a polyurethane containing a polar group and specified aromatic or alicyclic units
JP2835747B2 (ja) * 1989-09-14 1998-12-14 コニカ株式会社 磁気記録媒体
JP2717586B2 (ja) * 1989-12-28 1998-02-18 コニカ株式会社 磁気記録媒体
JP2850028B2 (ja) * 1989-12-28 1999-01-27 コニカ株式会社 磁気記録媒体

Also Published As

Publication number Publication date
US5531914A (en) 1996-07-02
JPH06340715A (ja) 1994-12-13
DE69413598D1 (de) 1998-11-05
CN1093726A (zh) 1994-10-19
KR100232244B1 (ko) 1999-12-01
ES2124806T3 (es) 1999-02-16
DE69413598T2 (de) 1999-03-04
EP0626678A2 (en) 1994-11-30
CA2119498A1 (en) 1994-09-23
EP0626678B1 (en) 1998-09-30
EP0626678A3 (en) 1995-01-11
CN1052026C (zh) 2000-05-03

Similar Documents

Publication Publication Date Title
KR910014411A (ko) (메트)아크릴레이트 중합체를 기본으로 하는 uv-가교 결합성 물질
KR940007614A (ko) 백지 복사기용 상-수용 시트
KR940022407A (ko) 자기 기록 매체
KR910010243A (ko) 가교 경화형 수지 조성물, 가교 경화형 수지 조성물과 금속과의 적층체 및 가교 경화형 수지 조성물을 사용하는 금속 가공방법
KR870004065A (ko) 비닐 크로라이드 수지 및 이 수지를 함유하는 조성물
JPS567233A (en) Magnetic recording medium
KR960010757A (ko) 내오염성이 우수한 광경화형 수지조성물 및 이의 제품
US4520079A (en) Magnetic recording medium
KR900018921A (ko) 자기 기록 매체용 결합제 및 자기 기록 매체
KR900001738A (ko) 요부를 갖는 편평상 에멀션 입자, 및 그의 제조방법
KR940005719A (ko) 수지입자, 그 제조방법 및 용도
KR950014242A (ko) 자성 도료 조성물 및 자기 기록 매질
GB1497658A (en) Process for coating films
JPS6076574A (ja) インクジエツト記録用インク組成物
KR890014700A (ko) 생물착생 방지용 피복조성물 및 방법
US3976822A (en) Magnetic tape and process of making a magnetic tape
KR880005160A (ko) 비닐 클로라이드 수지 및 이러한 수지 혼입시킨 조성물
KR950014247A (ko) 자기 기록 매체(Magnetic redording media)
JPS55116782A (en) Antiblock agent and its use
JPS5690874A (en) Adhesive composition for pvc/steel plate bonding
KR980002091A (ko) 염화 비닐계 공중합체 및 자기 기록 매체
JPS5757757A (en) Emulsion coating composition excellent in thick coating and leveling properties
KR920008537A (ko) 내식막 조성물
JPS57198764A (en) Resin composition for coating compound
KR950027700A (ko) 무기분말분사도료용결합제, 무기분말분산도료 및 자기기록매체

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20040607

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee