KR920013347A - 자기 기록 매체 - Google Patents

자기 기록 매체 Download PDF

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Publication number
KR920013347A
KR920013347A KR1019910022984A KR910022984A KR920013347A KR 920013347 A KR920013347 A KR 920013347A KR 1019910022984 A KR1019910022984 A KR 1019910022984A KR 910022984 A KR910022984 A KR 910022984A KR 920013347 A KR920013347 A KR 920013347A
Authority
KR
South Korea
Prior art keywords
moles
magnetic recording
recording medium
molecular weight
free
Prior art date
Application number
KR1019910022984A
Other languages
English (en)
Inventor
케펠러 우베
디코브 헤르만
아우베테어 헬무트
보브리히 미하엘
루돌프 요헨
보로트 그레고르
콜 알베르트
렌쯔 베르너
쉬팅어 루돌프
Original Assignee
게르하르트 크니르슈·파울 다이크너
바스프 마그네틱스 게엠베하
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 게르하르트 크니르슈·파울 다이크너, 바스프 마그네틱스 게엠베하 filed Critical 게르하르트 크니르슈·파울 다이크너
Publication of KR920013347A publication Critical patent/KR920013347A/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
    • 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
    • G11B5/7021—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 a polyurethane or a polyisocyanate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
    • C08G18/0819—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
    • C08G18/0828—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing sulfonate groups or groups forming them
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
    • 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
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
    • 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]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31609—Particulate metal or metal compound-containing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

내용 없음

Description

자기 기록 매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (2)

  1. 비자기성 기판, 및 그 위에 결합되고 50중량% 이상의 열가소성 폴리 우레탄으로 이루어진 결합제에 분포된 자기재료를 주성분으로 하는 하나 이상의 자기층으로 구성되는 자기 기록 매체에 있어서, 사용되는 열가소성 폴리우레탄이, 테트라히드로푸란에 가용성이고 사슬 말단에 OH-함유 우레아기를 갖고 30,000내지 200,000의 분자량을 가지며, (A)400내지 10,000의 분자량을 갖는 폴리디올1몰, (B)(B1)하나 이상의 C2-C18-디올과 (B2)하나 이상의 술폰산염 기를 갖는 디올의 혼합물 0.3내지 10몰, (C)C2내지 C25의 트리올 또는 폴리올 0.01내지 1몰, (D)하나 이상의 C6-C30-디이소시안산염 1.3 내지 13몰 및 (E) C2내지 C16의 아미놀 알코올 0.09내지 2몰로 부터 제조되며, 단 성분 (A)내지 (C)의 OH기대 성분(D)의 NCO기 대 성분(E)의 아미노기의 비가 1 : 1.03-1.3 : 0.03-0.3인, 이소시안산염이 없는 가지달린 폴리우레탄임을 특징으로 하는 자기 기록 매체.
  2. 비자기성 기판, 및 그위에 결합되고 50중량% 이상의 열가소성 폴릴 우레탄으로 이루어진 결합제에 분포된 자기재료를주성분으로 하나 하나 아싱의 자기층으로 이루어진 자기 기록 매체에 있어서, 사용되는 열가소성 풀리우레탄이, 테트라히드로푸란에 가용성이고 사슬 말단에 OH가 없는 우레아기를 갖고 30,000 내지 200,000의 분자량을 가지며, (A)400내지 10,000의 분자량을 갖는 폴리디올1몰, (B)(B1)하나 이상의 C2-C18-디올과 (B2)하나 이상의 술폰산염 기를 갖는 디올의 혼합물 0.3내지 10몰, (C)C10내지 C25의 트리올 또는 폴리올 0.01내지 1몰, (D)하나 이상의 C6-C30-디오소시안산염 1.3내지 13몰 및 (E) C2내지 C16의 OH가 없는 모노아민 0.09내지 2몰로 부터 제조되며, 단, 성분(A)내지 (C)의 OH기대 성분(D)의 NCO기대 성분(E)의 아미노기의 비가 1 : 1.03-1.3 : 0.03-0.3인, 이소시안산염이 없는 가지달린 폴리우레탄임을 특징으로 하는 자기 기록 매체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910022984A 1990-12-13 1991-12-13 자기 기록 매체 KR920013347A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4039749.1 1990-12-13
DE4039749A DE4039749A1 (de) 1990-12-13 1990-12-13 Magnetische aufzeichnungstraeger

Publications (1)

Publication Number Publication Date
KR920013347A true KR920013347A (ko) 1992-07-28

Family

ID=6420194

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910022984A KR920013347A (ko) 1990-12-13 1991-12-13 자기 기록 매체

Country Status (5)

Country Link
US (1) US5266408A (ko)
EP (1) EP0490201B1 (ko)
JP (1) JP3231372B2 (ko)
KR (1) KR920013347A (ko)
DE (2) DE4039749A1 (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2282338B (en) * 1993-09-30 1997-08-20 Basf Magnetics Gmbh Magnetic recording media
US5567512A (en) * 1993-10-08 1996-10-22 Hmt Technology Corporation Thin carbon overcoat and method of its making
DE4424261A1 (de) 1994-07-09 1996-01-11 Basf Magnetics Gmbh Magnetischer Aufzeichnungsträger
KR0163094B1 (ko) * 1995-10-18 1999-01-15 이웅열 자기기록매체
DE19734893A1 (de) * 1997-08-12 1999-02-18 Emtec Magnetics Gmbh Lösungsmittelfrei herstellbare Polyurethane und ihre Verwendung als Bindemittel für magnetische Aufzeichnungsträger

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2871218A (en) * 1955-12-01 1959-01-27 Goodrich Co B F Simulated vulcanizates of polyurethane elastomers
US2899411A (en) * 1956-07-30 1959-08-11 Polyurethane elastomers from hy-
US3320090A (en) * 1964-07-30 1967-05-16 Ampex Phenoxy-polyurethane magnetic tape binder
US4152485A (en) * 1977-08-05 1979-05-01 Toyo Boseki Kabushiki Kaisha Magnetic recording medium
DE2753694C3 (de) * 1977-12-02 1982-05-13 Basf Ag, 6700 Ludwigshafen Magnetische Aufzeichnungsträger mit Polyurethanelastomer-Bindemitteln in der Magnetschicht
GB2054622B (en) * 1979-07-12 1983-04-07 Tdk Electronics Co Ltd Magnetic recording medium
JPS5758227A (en) * 1980-09-25 1982-04-07 Tdk Corp Magnetic recording medium
DE3127884A1 (de) * 1981-07-15 1983-02-03 Agfa-Gevaert Ag, 5090 Leverkusen Magnetisches speichermedium
US4423115A (en) * 1981-10-23 1983-12-27 Tdk Electronics Co., Ltd. Magnetic recording medium
JPS6095722A (ja) * 1983-10-28 1985-05-29 Sony Corp 磁気記録媒体
EP0193084B1 (en) * 1985-03-01 1988-04-20 Sumitomo Bayer Urethane Co.Ltd: Magnetic recording medium, a process for preparing a magnetic recording medium and a binder composition therefor
JPS63275024A (ja) * 1987-05-02 1988-11-11 Hitachi Maxell Ltd 無機顔料用結合剤とこれを用いた磁気記録媒体
DE3929165A1 (de) * 1989-09-02 1991-03-07 Basf Ag Magnetische aufzeichnungstraeger

Also Published As

Publication number Publication date
JP3231372B2 (ja) 2001-11-19
EP0490201B1 (de) 1994-05-18
DE59101674D1 (de) 1994-06-23
JPH04298818A (ja) 1992-10-22
DE4039749A1 (de) 1992-06-17
US5266408A (en) 1993-11-30
EP0490201A1 (de) 1992-06-17

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