JPS649791A - Optical recording medium - Google Patents

Optical recording medium

Info

Publication number
JPS649791A
JPS649791A JP62165892A JP16589287A JPS649791A JP S649791 A JPS649791 A JP S649791A JP 62165892 A JP62165892 A JP 62165892A JP 16589287 A JP16589287 A JP 16589287A JP S649791 A JPS649791 A JP S649791A
Authority
JP
Japan
Prior art keywords
optical recording
polyester film
recording layer
recording medium
layer
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.)
Granted
Application number
JP62165892A
Other languages
Japanese (ja)
Other versions
JP2505473B2 (en
Inventor
Kenji Tsunashima
Seizo Aoki
Masaru Suzuki
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP62165892A priority Critical patent/JP2505473B2/en
Publication of JPS649791A publication Critical patent/JPS649791A/en
Application granted granted Critical
Publication of JP2505473B2 publication Critical patent/JP2505473B2/en
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
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
    • G11B7/2535—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins polyesters, e.g. PET, PETG or PEN

Landscapes

  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Laminated Bodies (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To enhance chemical resistance, transparency, curling resistance or the like of an optical recording medium, by providing an optical recording layer on a polyester film having a glass transition temperature, a modulus in flexure, a degree of crystallinity and a solution haze in respective specified ranges. CONSTITUTION:An optical recording layer is provided on a polyester film having a glass transition temperature of at least 70 deg.C, a modulus in flexure of at least 280kg/mm<2>, a degree of crystallinity of 5-40% and a solution haze of not more than 3%, thereby producing an optical recording medium. In the case of producing an optical card, for example, a polyester film is used which satisfies the above-mentioned characteristic values when being formed by extrusion of a polyester resin into a sheet form by an ordinary method is used. A hard coat layer is provided on one side of the polyester film, whereas an UV-curable layer is provided on the other side, followed by grooving and curing, then the optical recording layer is provided thereon, an adhesive is applied to the recording layer, and a polyvinyl chloride sheet is adhered thereto.
JP62165892A 1987-07-02 1987-07-02 Optical recording medium Expired - Fee Related JP2505473B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62165892A JP2505473B2 (en) 1987-07-02 1987-07-02 Optical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62165892A JP2505473B2 (en) 1987-07-02 1987-07-02 Optical recording medium

Publications (2)

Publication Number Publication Date
JPS649791A true JPS649791A (en) 1989-01-13
JP2505473B2 JP2505473B2 (en) 1996-06-12

Family

ID=15820958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62165892A Expired - Fee Related JP2505473B2 (en) 1987-07-02 1987-07-02 Optical recording medium

Country Status (1)

Country Link
JP (1) JP2505473B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004203050A (en) * 2002-12-23 2004-07-22 Eastman Kodak Co Coextruded film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004203050A (en) * 2002-12-23 2004-07-22 Eastman Kodak Co Coextruded film

Also Published As

Publication number Publication date
JP2505473B2 (en) 1996-06-12

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees