JPS5786131A - Radiation hardening magnetic medium and method of fabricating same - Google Patents

Radiation hardening magnetic medium and method of fabricating same

Info

Publication number
JPS5786131A
JPS5786131A JP14929181A JP14929181A JPS5786131A JP S5786131 A JPS5786131 A JP S5786131A JP 14929181 A JP14929181 A JP 14929181A JP 14929181 A JP14929181 A JP 14929181A JP S5786131 A JPS5786131 A JP S5786131A
Authority
JP
Japan
Prior art keywords
magnetic medium
radiation hardening
fabricating same
hardening magnetic
fabricating
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.)
Pending
Application number
JP14929181A
Other languages
Japanese (ja)
Inventor
Chiyangu Haaouujiyan
Ei Nishimura Akihiro
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.)
Ampex Corp
Original Assignee
Ampex Corp
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 Ampex Corp filed Critical Ampex Corp
Publication of JPS5786131A publication Critical patent/JPS5786131A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
    • C08F299/02—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates
    • C08F299/022—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates from polycondensates with side or terminal unsaturations
    • 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
    • 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
    • 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
    • G11B5/7026—Radiation curable polymers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Polymerisation Methods In General (AREA)
JP14929181A 1980-09-22 1981-09-21 Radiation hardening magnetic medium and method of fabricating same Pending JPS5786131A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18997980A 1980-09-22 1980-09-22

Publications (1)

Publication Number Publication Date
JPS5786131A true JPS5786131A (en) 1982-05-29

Family

ID=22699560

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14929181A Pending JPS5786131A (en) 1980-09-22 1981-09-21 Radiation hardening magnetic medium and method of fabricating same

Country Status (11)

Country Link
EP (1) EP0060300A1 (en)
JP (1) JPS5786131A (en)
AU (1) AU546317B2 (en)
BR (1) BR8106017A (en)
CA (1) CA1167408A (en)
DE (1) DE3137691C2 (en)
FR (1) FR2491246A1 (en)
GB (1) GB2084589B (en)
IE (1) IE51908B1 (en)
MX (1) MX158193A (en)
WO (1) WO1982001099A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408020A (en) * 1982-06-28 1983-10-04 The B. F. Goodrich Company Curable polyurethanes
JPS5979431A (en) * 1982-10-29 1984-05-08 Konishiroku Photo Ind Co Ltd Magnetic recording medium
EP0123081A3 (en) * 1983-03-09 1986-11-26 DeSOTO, INC. Coatings for magnetic recording structures and production thereof
US4507458A (en) * 1983-04-14 1985-03-26 Takeda Chemical Industries, Ltd. Urethane acrylate compositions
JPS6057531A (en) * 1983-09-07 1985-04-03 Kao Corp Magnetic recording medium
DE3332564A1 (en) * 1983-09-09 1985-03-28 Basf Ag, 6700 Ludwigshafen MAGNETIC RECORDING CARRIERS
DE3418482A1 (en) * 1984-05-18 1985-11-21 Basf Ag, 6700 Ludwigshafen MAGNETIC RECORDING CARRIERS
US4543268A (en) * 1984-07-05 1985-09-24 Minnesota Mining And Manufacturing Company Electron-beam adhesion-promoting treatment of polyester film base for magnetic recording media
US4594262A (en) * 1984-07-05 1986-06-10 Minnesota Mining And Manufacturing Company Electron beam adhesion-promoting treatment of polyester film base
JPH0610856B2 (en) * 1984-08-04 1994-02-09 ティーディーケイ株式会社 Magnetic recording medium
US5281482A (en) * 1988-04-22 1994-01-25 Minnesota Mining And Manufacturing Company Magnetic recording medium comprising magnetic particles and an electron beam curable polyurethane binder having segments derived from a specified unsaturated diol
US5028683A (en) * 1988-04-22 1991-07-02 Minnesota Mining And Manufacturing Company Electron-beam curable polyurethane compositions; and method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4715104A (en) * 1971-01-02 1972-08-18

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB829512A (en) * 1957-01-31 1960-03-02 Dow Chemical Co Method for cross-linking vinyl chloride polymers
US3104983A (en) * 1959-08-26 1963-09-24 Ibm Method of curing magnetic tape binder comprising butadiene-acrylonitrile and phenolicresin with subatomic radiation
DE1240934B (en) * 1965-09-15 1967-05-24 Basf Ag Binder for ferromagnetic powder in the manufacture of magnetogram carriers
GB1431854A (en) * 1972-04-07 1976-04-14 Sony Corp Magnetic recording media and methods of making them
US4072592A (en) * 1974-05-20 1978-02-07 Mobil Oil Corporation Radiation curable coating
JPS5845474B2 (en) * 1974-05-20 1983-10-11 モビル オイル コ−ポレ−シヨン radiation curable paint
JPS5921909B2 (en) * 1974-10-31 1984-05-23 東レ株式会社 Radiation curable coating composition
US4152485A (en) * 1977-08-05 1979-05-01 Toyo Boseki Kabushiki Kaisha Magnetic recording medium
SE444991B (en) * 1978-05-01 1986-05-20 Minnesota Mining & Mfg PHOTOPOLYMERIZABLE COMPOSITION AND SUBSTRATE COATED WITH THE COMPOSITION
FR2456963A1 (en) * 1979-05-18 1980-12-12 Eastman Kodak Co PHOTOGRAPHIC PRODUCT HAVING A MAGNETIC RECORDING TRACK AND METHOD FOR THE PRODUCTION THEREOF
US4273633A (en) * 1979-06-11 1981-06-16 Union Carbide Corporation Radiation curable dispersions containing high molecular weight essentially nonpolymerizable vinyl resins
FR2463478B1 (en) * 1979-08-06 1986-07-18 Sony Corp MAGNETIC RECORDING ELEMENT
JPS5625230A (en) * 1979-08-06 1981-03-11 Sony Corp Magnetic recording medium
FR2463477B1 (en) * 1979-08-06 1988-04-08 Sony Corp MAGNETIC RECORDING ELEMENT

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4715104A (en) * 1971-01-02 1972-08-18

Also Published As

Publication number Publication date
WO1982001099A1 (en) 1982-04-01
MX158193A (en) 1989-01-16
GB2084589A (en) 1982-04-15
AU7554681A (en) 1982-04-01
BR8106017A (en) 1982-06-08
GB2084589B (en) 1984-08-22
FR2491246A1 (en) 1982-04-02
IE51908B1 (en) 1987-04-29
DE3137691C2 (en) 1984-05-17
CA1167408A (en) 1984-05-15
IE812187L (en) 1982-03-22
FR2491246B1 (en) 1984-12-28
DE3137691A1 (en) 1982-05-27
EP0060300A1 (en) 1982-09-22
AU546317B2 (en) 1985-08-29

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