NL167716C - METHOD FOR MANUFACTURING MAGNETIC TAPES - Google Patents

METHOD FOR MANUFACTURING MAGNETIC TAPES

Info

Publication number
NL167716C
NL167716C NL7704705A NL7704705A NL167716C NL 167716 C NL167716 C NL 167716C NL 7704705 A NL7704705 A NL 7704705A NL 7704705 A NL7704705 A NL 7704705A NL 167716 C NL167716 C NL 167716C
Authority
NL
Netherlands
Prior art keywords
magnetic tapes
manufacturing magnetic
manufacturing
tapes
magnetic
Prior art date
Application number
NL7704705A
Other languages
Dutch (nl)
Other versions
NL167716B (en
NL7704705A (en
Original Assignee
Tdk Electronics 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
Application filed by Tdk Electronics Co Ltd filed Critical Tdk Electronics Co Ltd
Publication of NL7704705A publication Critical patent/NL7704705A/en
Publication of NL167716B publication Critical patent/NL167716B/en
Application granted granted Critical
Publication of NL167716C publication Critical patent/NL167716C/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/08—Cellulose derivatives
    • C08L1/16—Esters of inorganic acids
    • C08L1/18—Cellulose nitrate, i.e. nitrocellulose
    • 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
    • G11B5/7025—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 cellulosic derivates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Magnetic Record Carriers (AREA)
NL7704705A 1976-05-24 1977-04-29 METHOD FOR MANUFACTURING MAGNETIC TAPES NL167716C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5908476A JPS52142756A (en) 1976-05-24 1976-05-24 Nitrocellulose and magnetic recording media

Publications (3)

Publication Number Publication Date
NL7704705A NL7704705A (en) 1977-11-28
NL167716B NL167716B (en) 1981-08-17
NL167716C true NL167716C (en) 1982-01-18

Family

ID=13103114

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7704705A NL167716C (en) 1976-05-24 1977-04-29 METHOD FOR MANUFACTURING MAGNETIC TAPES

Country Status (3)

Country Link
JP (1) JPS52142756A (en)
DE (1) DE2719285A1 (en)
NL (1) NL167716C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5698719A (en) * 1980-01-10 1981-08-08 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57150129A (en) * 1981-03-12 1982-09-16 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57185329A (en) * 1981-04-02 1982-11-15 Daicel Chem Ind Ltd Preparation of nitrocellulose composition
JPS6042804A (en) * 1983-08-18 1985-03-07 Hitachi Maxell Ltd Magnetic recording medium and magnetic powder for recording medium
US5180616A (en) * 1986-06-23 1993-01-19 Hitachi, Ltd. Hard disk magnetic recording medium comprising magnetic powder and a binder and having a specified magnetic layer thickness and surface roughness
DE3720717C2 (en) * 1986-06-23 1994-02-17 Hitachi Ltd Magnetic coating agent, its manufacture and magnetic recording media using the coating agent

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL125103C (en) * 1965-08-20

Also Published As

Publication number Publication date
DE2719285B2 (en) 1980-03-20
DE2719285C3 (en) 1980-11-13
NL167716B (en) 1981-08-17
JPS5615046B2 (en) 1981-04-08
JPS52142756A (en) 1977-11-28
NL7704705A (en) 1977-11-28
DE2719285A1 (en) 1978-04-13

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee

Effective date: 19951101