KR950011069B1 - Magnetic recording medium and manufacturing method of it - Google Patents

Magnetic recording medium and manufacturing method of it Download PDF

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Publication number
KR950011069B1
KR950011069B1 KR91017562A KR910017562A KR950011069B1 KR 950011069 B1 KR950011069 B1 KR 950011069B1 KR 91017562 A KR91017562 A KR 91017562A KR 910017562 A KR910017562 A KR 910017562A KR 950011069 B1 KR950011069 B1 KR 950011069B1
Authority
KR
South Korea
Prior art keywords
manufacturing
recording medium
magnetic recording
volatile
polyurethan
Prior art date
Application number
KR91017562A
Other languages
Korean (ko)
Other versions
KR930008734A (en
Inventor
Duk-Su Yu
Ui-Hwan Song
Hyon-Su Cho
Original Assignee
Kolon 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 Kolon Co Ltd filed Critical Kolon Co Ltd
Priority to KR91017562A priority Critical patent/KR950011069B1/en
Publication of KR930008734A publication Critical patent/KR930008734A/en
Application granted granted Critical
Publication of KR950011069B1 publication Critical patent/KR950011069B1/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
    • 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

Landscapes

  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Paints Or Removers (AREA)

Abstract

dispersing a volatile element having a main element of vinyl chloride including a carbon powder of pH 2.5~5.0 and weight of 3.0~10.0 percent; and manufacturing the polyurethan volatile elements.
KR91017562A 1991-10-07 1991-10-07 Magnetic recording medium and manufacturing method of it KR950011069B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR91017562A KR950011069B1 (en) 1991-10-07 1991-10-07 Magnetic recording medium and manufacturing method of it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR91017562A KR950011069B1 (en) 1991-10-07 1991-10-07 Magnetic recording medium and manufacturing method of it

Publications (2)

Publication Number Publication Date
KR930008734A KR930008734A (en) 1993-05-21
KR950011069B1 true KR950011069B1 (en) 1995-09-27

Family

ID=19320894

Family Applications (1)

Application Number Title Priority Date Filing Date
KR91017562A KR950011069B1 (en) 1991-10-07 1991-10-07 Magnetic recording medium and manufacturing method of it

Country Status (1)

Country Link
KR (1) KR950011069B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101054693B1 (en) * 2007-11-09 2011-08-08 제일모직주식회사 Transparent thermoplastic resin and preparation method thereof

Also Published As

Publication number Publication date
KR930008734A (en) 1993-05-21

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee