JPH0450662B2 - - Google Patents

Info

Publication number
JPH0450662B2
JPH0450662B2 JP59115275A JP11527584A JPH0450662B2 JP H0450662 B2 JPH0450662 B2 JP H0450662B2 JP 59115275 A JP59115275 A JP 59115275A JP 11527584 A JP11527584 A JP 11527584A JP H0450662 B2 JPH0450662 B2 JP H0450662B2
Authority
JP
Japan
Prior art keywords
degree
polymerization
polyvinyl acetal
birefringence
information recording
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.)
Expired - Lifetime
Application number
JP59115275A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60259496A (ja
Inventor
Tatsuo Kinoshita
Shigeru Nomura
Toshio Kamisaka
Tetsuo Sumya
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical 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 Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP59115275A priority Critical patent/JPS60259496A/ja
Publication of JPS60259496A publication Critical patent/JPS60259496A/ja
Publication of JPH0450662B2 publication Critical patent/JPH0450662B2/ja
Granted 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

Landscapes

  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
JP59115275A 1984-06-05 1984-06-05 光学式情報記録体 Granted JPS60259496A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59115275A JPS60259496A (ja) 1984-06-05 1984-06-05 光学式情報記録体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59115275A JPS60259496A (ja) 1984-06-05 1984-06-05 光学式情報記録体

Publications (2)

Publication Number Publication Date
JPS60259496A JPS60259496A (ja) 1985-12-21
JPH0450662B2 true JPH0450662B2 (2) 1992-08-14

Family

ID=14658625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59115275A Granted JPS60259496A (ja) 1984-06-05 1984-06-05 光学式情報記録体

Country Status (1)

Country Link
JP (1) JPS60259496A (2)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0333157B1 (en) * 1988-03-16 1993-12-08 Sharp Kabushiki Kaisha Method of controlling transport of photoreceptive sheet
US10717862B2 (en) * 2018-07-11 2020-07-21 Solutia Inc. Poly(vinyl acetal) resin compositions, layers, and interlayers having enhanced properties

Also Published As

Publication number Publication date
JPS60259496A (ja) 1985-12-21

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