JPS5733446A - High-density information recording carrier - Google Patents

High-density information recording carrier

Info

Publication number
JPS5733446A
JPS5733446A JP10548080A JP10548080A JPS5733446A JP S5733446 A JPS5733446 A JP S5733446A JP 10548080 A JP10548080 A JP 10548080A JP 10548080 A JP10548080 A JP 10548080A JP S5733446 A JPS5733446 A JP S5733446A
Authority
JP
Japan
Prior art keywords
methacrylate
vinyl monomer
information recording
density information
recording carrier
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
JP10548080A
Other languages
Japanese (ja)
Other versions
JPS6412018B2 (en
Inventor
Takeshi Moriwaki
Shinji Tokuhara
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 Corp
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 Corp, Daicel Chemical Industries Ltd filed Critical Daicel Corp
Priority to JP10548080A priority Critical patent/JPS5733446A/en
Publication of JPS5733446A publication Critical patent/JPS5733446A/en
Publication of JPS6412018B2 publication Critical patent/JPS6412018B2/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
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0057—Intermediate mediums, i.e. mediums provided with an information structure not specific to the method of reproducing or duplication such as matrixes for mechanical pressing of an information structure ; record carriers having a relief information structure provided with or included in layers not specific for a single reproducing method; apparatus or processes specially adapted for their manufacture

Landscapes

  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To manufacture a carrier with a process of an injection molding, by using a copolymer composed of 97-20wt% methyl methacrylate and 3-80wt% vinyl monomer that can be copolymerized with the said methacrylate for the disk base material of optical system or electrostatic capacity system. CONSTITUTION:The vinyl monomer which can be copolymerized with methyl methacrylate includes the aromatic vinyl monomer, unsaturated nitrile monomer, methacrylic alkyl ester, acrylic alkyl ester, etc. These monomers can be used independently or in the form of a mixture, and methyl-methacrylate-styrene copolymer is preferably used.
JP10548080A 1980-07-31 1980-07-31 High-density information recording carrier Granted JPS5733446A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10548080A JPS5733446A (en) 1980-07-31 1980-07-31 High-density information recording carrier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10548080A JPS5733446A (en) 1980-07-31 1980-07-31 High-density information recording carrier

Publications (2)

Publication Number Publication Date
JPS5733446A true JPS5733446A (en) 1982-02-23
JPS6412018B2 JPS6412018B2 (en) 1989-02-28

Family

ID=14408744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10548080A Granted JPS5733446A (en) 1980-07-31 1980-07-31 High-density information recording carrier

Country Status (1)

Country Link
JP (1) JPS5733446A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5868251A (en) * 1981-10-19 1983-04-23 Mitsui Toatsu Chem Inc Optical disk
JPS5888843A (en) * 1981-11-19 1983-05-27 Asahi Chem Ind Co Ltd Optical high density information recording medium resin and optical high density information recording medium
JPS5915514U (en) * 1982-07-20 1984-01-30 本田技研工業株式会社 Fixing device for fiber-reinforced resin parts
JPS6063211A (en) * 1983-09-19 1985-04-11 Nippon Oil & Fats Co Ltd Acrylic thermosetting resin composition
WO1986002653A1 (en) * 1984-11-02 1986-05-09 Sumitomo Chemical Company, Limited Optical resin materials
JPH01231001A (en) * 1988-03-11 1989-09-14 Pioneer Electron Corp Methacrylic resin as material for optical disc
US5043405A (en) * 1988-01-07 1991-08-27 Asahi Kasei Kogyo Kabushiki Kaisha Methacrylic copolymer having low moisture absorption properties
US5080945A (en) * 1982-12-30 1992-01-14 Daicel Chemical Industries, Ltd. Large-capacity-memory disk
US5198305A (en) * 1986-12-25 1993-03-30 Asahi Kasei Kogyo Kabushiki Kaisha Optical element substrate

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5868251A (en) * 1981-10-19 1983-04-23 Mitsui Toatsu Chem Inc Optical disk
JPS5888843A (en) * 1981-11-19 1983-05-27 Asahi Chem Ind Co Ltd Optical high density information recording medium resin and optical high density information recording medium
JPS5915514U (en) * 1982-07-20 1984-01-30 本田技研工業株式会社 Fixing device for fiber-reinforced resin parts
US5080945A (en) * 1982-12-30 1992-01-14 Daicel Chemical Industries, Ltd. Large-capacity-memory disk
JPS6063211A (en) * 1983-09-19 1985-04-11 Nippon Oil & Fats Co Ltd Acrylic thermosetting resin composition
WO1986002653A1 (en) * 1984-11-02 1986-05-09 Sumitomo Chemical Company, Limited Optical resin materials
US5198305A (en) * 1986-12-25 1993-03-30 Asahi Kasei Kogyo Kabushiki Kaisha Optical element substrate
US5043405A (en) * 1988-01-07 1991-08-27 Asahi Kasei Kogyo Kabushiki Kaisha Methacrylic copolymer having low moisture absorption properties
JPH01231001A (en) * 1988-03-11 1989-09-14 Pioneer Electron Corp Methacrylic resin as material for optical disc

Also Published As

Publication number Publication date
JPS6412018B2 (en) 1989-02-28

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