KR970000408B1 - Magnetic recording medium - Google Patents

Magnetic recording medium Download PDF

Info

Publication number
KR970000408B1
KR970000408B1 KR88017469A KR880017469A KR970000408B1 KR 970000408 B1 KR970000408 B1 KR 970000408B1 KR 88017469 A KR88017469 A KR 88017469A KR 880017469 A KR880017469 A KR 880017469A KR 970000408 B1 KR970000408 B1 KR 970000408B1
Authority
KR
South Korea
Prior art keywords
recording medium
magnetic recording
magnetic
medium
recording
Prior art date
Application number
KR88017469A
Other languages
Korean (ko)
Other versions
KR890010814A (en
Inventor
Naohiro Takeda
Yuzo Otani
Nariaki Okajima
Yoshihiko Ito
Shinichi Kinoshita
Masashi Inagaki
Tahashi Harada
Original Assignee
Diafoil Kk
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 JP62329251A external-priority patent/JPH01171115A/en
Priority claimed from JP63096146A external-priority patent/JPH01267830A/en
Priority claimed from JP63225070A external-priority patent/JPH0273512A/en
Application filed by Diafoil Kk filed Critical Diafoil Kk
Publication of KR890010814A publication Critical patent/KR890010814A/en
Application granted granted Critical
Publication of KR970000408B1 publication Critical patent/KR970000408B1/en

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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/735—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back layer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/66—Additives characterised by particle size
    • C09D7/69—Particle size larger than 1000 nm
KR88017469A 1987-12-25 1988-12-24 Magnetic recording medium KR970000408B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP329251/87 1987-12-25
JP62329251A JPH01171115A (en) 1987-12-25 1987-12-25 Magnetic recording medium
JP63096146A JPH01267830A (en) 1988-04-19 1988-04-19 Magnetic recording medium
JP96146/88 1988-04-19
JP63225070A JPH0273512A (en) 1988-09-08 1988-09-08 Magnetic recording medium
JP225070/88 1988-09-08

Publications (2)

Publication Number Publication Date
KR890010814A KR890010814A (en) 1989-08-10
KR970000408B1 true KR970000408B1 (en) 1997-01-09

Family

ID=27308013

Family Applications (1)

Application Number Title Priority Date Filing Date
KR88017469A KR970000408B1 (en) 1987-12-25 1988-12-24 Magnetic recording medium

Country Status (1)

Country Link
KR (1) KR970000408B1 (en)

Also Published As

Publication number Publication date
KR890010814A (en) 1989-08-10

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Legal Events

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G160 Decision to publish patent application
B701 Decision to grant
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee