JPH0318260B2 - - Google Patents

Info

Publication number
JPH0318260B2
JPH0318260B2 JP59254669A JP25466984A JPH0318260B2 JP H0318260 B2 JPH0318260 B2 JP H0318260B2 JP 59254669 A JP59254669 A JP 59254669A JP 25466984 A JP25466984 A JP 25466984A JP H0318260 B2 JPH0318260 B2 JP H0318260B2
Authority
JP
Japan
Prior art keywords
aldehydes
aldehyde
mol
degree
polyvinyl acetal
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
JP59254669A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61132383A (ja
Inventor
Shigeru Nomura
Tatsuo Kinoshita
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 JP59254669A priority Critical patent/JPS61132383A/ja
Publication of JPS61132383A publication Critical patent/JPS61132383A/ja
Publication of JPH0318260B2 publication Critical patent/JPH0318260B2/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)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
JP59254669A 1984-11-30 1984-11-30 光学式情報記録体 Granted JPS61132383A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59254669A JPS61132383A (ja) 1984-11-30 1984-11-30 光学式情報記録体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59254669A JPS61132383A (ja) 1984-11-30 1984-11-30 光学式情報記録体

Publications (2)

Publication Number Publication Date
JPS61132383A JPS61132383A (ja) 1986-06-19
JPH0318260B2 true JPH0318260B2 (2) 1991-03-12

Family

ID=17268215

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59254669A Granted JPS61132383A (ja) 1984-11-30 1984-11-30 光学式情報記録体

Country Status (1)

Country Link
JP (1) JPS61132383A (2)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62141003A (ja) * 1985-12-13 1987-06-24 Sekisui Chem Co Ltd 不飽和環カルボアルデヒド−アセタ−ル化ポリビニルアルコ−ル
JPS62141004A (ja) * 1985-12-13 1987-06-24 Sekisui Chem Co Ltd シクロヘキサンカルボアルデヒド及びアルキル化シクロヘキサンカルボアルデヒド−アセタ−ル化ポリビニルアルコ−ル
JP2006022160A (ja) * 2004-07-06 2006-01-26 Sekisui Chem Co Ltd 変性ポリビニルアルコール
JP4828347B2 (ja) * 2006-08-01 2011-11-30 株式会社クラレ ポリビニルアセタール樹脂

Also Published As

Publication number Publication date
JPS61132383A (ja) 1986-06-19

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