DE69514263D1 - Bindemittel für dispergiertes anorganisches Pulver enthaltende Beschichtungsmittel, dispergiertes anorganisches Pulver enthaltende Beschichtungsmittel sowie magnetisches Aufzeichnungsmedium - Google Patents

Bindemittel für dispergiertes anorganisches Pulver enthaltende Beschichtungsmittel, dispergiertes anorganisches Pulver enthaltende Beschichtungsmittel sowie magnetisches Aufzeichnungsmedium

Info

Publication number
DE69514263D1
DE69514263D1 DE69514263T DE69514263T DE69514263D1 DE 69514263 D1 DE69514263 D1 DE 69514263D1 DE 69514263 T DE69514263 T DE 69514263T DE 69514263 T DE69514263 T DE 69514263T DE 69514263 D1 DE69514263 D1 DE 69514263D1
Authority
DE
Germany
Prior art keywords
inorganic powder
coating agents
agents containing
containing dispersed
dispersed inorganic
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.)
Expired - Fee Related
Application number
DE69514263T
Other languages
English (en)
Other versions
DE69514263T2 (de
Inventor
Masahiro Yamakawa
Kenji Akimoto
Katsuya Nakamura
Fumio Takano
Takahiro Takasaki
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.)
Zeon Corp
Original Assignee
Nippon Zeon 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 JP6262047A external-priority patent/JPH08104731A/ja
Application filed by Nippon Zeon Co Ltd filed Critical Nippon Zeon Co Ltd
Publication of DE69514263D1 publication Critical patent/DE69514263D1/de
Application granted granted Critical
Publication of DE69514263T2 publication Critical patent/DE69514263T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • G11B5/7022—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 containing mixtures of polyurethanes or polyisocyanates with other polymers
    • 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
    • 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
    • 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
    • C08G18/83—Chemically modified polymers
    • C08G18/86—Chemically modified polymers by peroxides
    • 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
    • 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
    • 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
    • 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
    • Y10T428/31938—Polymer of monoethylenically unsaturated hydrocarbon

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)
  • General Chemical & Material Sciences (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
DE69514263T 1994-03-11 1995-03-09 Bindemittel für dispergiertes anorganisches Pulver enthaltende Beschichtungsmittel, dispergiertes anorganisches Pulver enthaltende Beschichtungsmittel sowie magnetisches Aufzeichnungsmedium Expired - Fee Related DE69514263T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP6792394 1994-03-11
JP7246894 1994-03-17
JP25926594 1994-09-29
JP6262047A JPH08104731A (ja) 1994-09-30 1994-09-30 硬化性ポリウレタン樹脂組成物及び磁気記録媒体

Publications (2)

Publication Number Publication Date
DE69514263D1 true DE69514263D1 (de) 2000-02-10
DE69514263T2 DE69514263T2 (de) 2001-11-22

Family

ID=27464916

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69514263T Expired - Fee Related DE69514263T2 (de) 1994-03-11 1995-03-09 Bindemittel für dispergiertes anorganisches Pulver enthaltende Beschichtungsmittel, dispergiertes anorganisches Pulver enthaltende Beschichtungsmittel sowie magnetisches Aufzeichnungsmedium

Country Status (4)

Country Link
US (1) US5607772A (de)
EP (1) EP0673956B1 (de)
KR (1) KR100187596B1 (de)
DE (1) DE69514263T2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19644347C2 (de) * 1995-11-02 1999-08-12 Emtec Magnetics Gmbh Polyurethane
JP2003303711A (ja) * 2001-03-27 2003-10-24 Jfe Steel Kk 鉄基粉末およびこれを用いた圧粉磁心ならびに鉄基粉末の製造方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830038A (en) * 1957-05-07 1958-04-08 Du Pont Poly (polyalkylene ether urethane) polymers containing terminal epoxide groups
US3445436A (en) * 1966-06-14 1969-05-20 Tremco Mfg Co Polyurethane polyepoxides
US4069208A (en) * 1975-10-14 1978-01-17 E. I. Du Pont De Nemours And Company Heat-activatable polyurethane powder coatings
JPS6195082A (ja) * 1984-10-16 1986-05-13 Toyo Tire & Rubber Co Ltd 磁性塗料組成物
US4748084A (en) * 1985-11-11 1988-05-31 Nippon Zeon Co., Ltd. Magnetic recording medium
JPS62146432A (ja) * 1985-12-20 1987-06-30 Fuji Photo Film Co Ltd 磁気記録媒体
JP2606238B2 (ja) * 1987-10-23 1997-04-30 ソニー株式会社 磁気記録媒体
US5277984A (en) * 1990-02-02 1994-01-11 Nippon Zeon Co., Ltd. Magnetic recording medium comprising ferromagnetic powder, a silane compound, and a binder comprising an epoxy group and specified functional group

Also Published As

Publication number Publication date
KR100187596B1 (ko) 1999-06-01
US5607772A (en) 1997-03-04
DE69514263T2 (de) 2001-11-22
EP0673956A1 (de) 1995-09-27
KR950027700A (ko) 1995-10-18
EP0673956B1 (de) 2000-01-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee