JPS6487625A - Polycarbonate copolymer - Google Patents

Polycarbonate copolymer

Info

Publication number
JPS6487625A
JPS6487625A JP62242475A JP24247587A JPS6487625A JP S6487625 A JPS6487625 A JP S6487625A JP 62242475 A JP62242475 A JP 62242475A JP 24247587 A JP24247587 A JP 24247587A JP S6487625 A JPS6487625 A JP S6487625A
Authority
JP
Japan
Prior art keywords
copolymer
laser beams
recurring units
units expressed
polycarbonate copolymer
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
JP62242475A
Other languages
Japanese (ja)
Other versions
JP2562619B2 (en
Inventor
Ikuo Takahashi
Tatsuya Sugano
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.)
Daicel Corp
Original Assignee
Daicel Chemical Industries 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 Daicel Chemical Industries Ltd filed Critical Daicel Chemical Industries Ltd
Priority to JP62242475A priority Critical patent/JP2562619B2/en
Publication of JPS6487625A publication Critical patent/JPS6487625A/en
Application granted granted Critical
Publication of JP2562619B2 publication Critical patent/JP2562619B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B7/2534—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 polycarbonates [PC]

Landscapes

  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To obtain the titled copolymer, consisting of specific two kinds of recurring units, having excellent heat resistance and transparency, capable of recording signals by laser beams or carrying out reading out of the signals recorded by reflection and transmission of the laser beams and useful as optical disks for recording information. CONSTITUTION:The aimed copolymer having recurring units expressed by formulas I and II at 1:99-99:1 molar ratio of the units expressed by formula I to II and preferably 13,000-50,000 viscosity-average molecular weight. This copolymer is obtained by linking 99-1mol.% 1,1-bis(4-hydroxy-3-tert-butylphenyl) cyclohexane to 1-99mol.% bisphenol P through carbonate bonds.
JP62242475A 1987-09-29 1987-09-29 Polycarbonate copolymer Expired - Lifetime JP2562619B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62242475A JP2562619B2 (en) 1987-09-29 1987-09-29 Polycarbonate copolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62242475A JP2562619B2 (en) 1987-09-29 1987-09-29 Polycarbonate copolymer

Publications (2)

Publication Number Publication Date
JPS6487625A true JPS6487625A (en) 1989-03-31
JP2562619B2 JP2562619B2 (en) 1996-12-11

Family

ID=17089639

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62242475A Expired - Lifetime JP2562619B2 (en) 1987-09-29 1987-09-29 Polycarbonate copolymer

Country Status (1)

Country Link
JP (1) JP2562619B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006501320A (en) * 2002-07-31 2006-01-12 ブルーワー サイエンス アイ エヌ シー． Photosensitive bottom antireflection film <Background of the invention>
JP2008212007A (en) * 2007-02-28 2008-09-18 Iseki & Co Ltd Combine harvester

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006501320A (en) * 2002-07-31 2006-01-12 ブルーワー サイエンス アイ エヌ シー． Photosensitive bottom antireflection film <Background of the invention>
JP2008212007A (en) * 2007-02-28 2008-09-18 Iseki & Co Ltd Combine harvester

Also Published As

Publication number Publication date
JP2562619B2 (en) 1996-12-11

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