JPS6431690A - Polycarbonate molding material for optical disk - Google Patents

Polycarbonate molding material for optical disk

Info

Publication number
JPS6431690A
JPS6431690A JP62187707A JP18770787A JPS6431690A JP S6431690 A JPS6431690 A JP S6431690A JP 62187707 A JP62187707 A JP 62187707A JP 18770787 A JP18770787 A JP 18770787A JP S6431690 A JPS6431690 A JP S6431690A
Authority
JP
Japan
Prior art keywords
optical disk
resin
halogenated hydrocarbon
molding material
solvent
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
JP62187707A
Other languages
Japanese (ja)
Other versions
JP2672094B2 (en
Inventor
Toshikazu Umemura
Yutaka Kojima
Toshiaki Izumida
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.)
Mitsubishi Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=16210759&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPS6431690(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Priority to JP62187707A priority Critical patent/JP2672094B2/en
Priority to EP88111791A priority patent/EP0300485A3/en
Priority to US07/222,483 priority patent/US4845193A/en
Publication of JPS6431690A publication Critical patent/JPS6431690A/en
Application granted granted Critical
Publication of JP2672094B2 publication Critical patent/JP2672094B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/40—Post-polymerisation treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To obtain an optical disk having excellent long-term reliability and capable of being stably used under high-temperature high-humid environment by bringing halogenated hydrocarbon as a polymerization solvent contained in a polycarbonate resin to a specific value or less. CONSTITUTION:A polycarbonate resin is acquired by the reaction of bisphenol and phosgene, using halogenated hydrocarbon as a solvent, the granules of the resin are pulverized as they are or under conditions in which 'dust' does not further increase, and dried and the halogenated hydrocarbon solvent is changed into dried powder of 10ppm or less, and desired additives are compounded properly and the powder is extruded and pelletized, thus manufacturing a molding material. The pellet is injection-molded and an optical disk substrate is obtained, the upper section of a recording film shaped by evaporating a substance such as a tellurium group oxide onto the substrate in 300-500Angstrom with a photo-setting type acrylic group resin, and the acrylic group resin is cured by ultraviolet rays, thus acquiring an optical disk.
JP62187707A 1987-07-21 1987-07-29 Polycarbonate molding material for optical disks. Expired - Lifetime JP2672094B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP62187707A JP2672094B2 (en) 1987-07-29 1987-07-29 Polycarbonate molding material for optical disks.
EP88111791A EP0300485A3 (en) 1987-07-21 1988-07-21 Process for producing polycarbonate resin molding material with low particle content
US07/222,483 US4845193A (en) 1987-07-21 1988-07-21 Process for producing polycarbonate resin molding material having low particle content with vented extruder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62187707A JP2672094B2 (en) 1987-07-29 1987-07-29 Polycarbonate molding material for optical disks.

Publications (2)

Publication Number Publication Date
JPS6431690A true JPS6431690A (en) 1989-02-01
JP2672094B2 JP2672094B2 (en) 1997-11-05

Family

ID=16210759

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62187707A Expired - Lifetime JP2672094B2 (en) 1987-07-21 1987-07-29 Polycarbonate molding material for optical disks.

Country Status (1)

Country Link
JP (1) JP2672094B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03116559A (en) * 1989-09-29 1991-05-17 Sony Corp Optical information recording medium
JPH11342510A (en) * 1998-04-03 1999-12-14 Teijin Chem Ltd Optical molding material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61221225A (en) * 1985-03-28 1986-10-01 Idemitsu Petrochem Co Ltd Production of molding polycarbonate resin
JPS63218730A (en) * 1987-03-09 1988-09-12 Teijin Chem Ltd Purification of polycarbonate granules
JPS63316313A (en) * 1987-06-18 1988-12-23 Idemitsu Petrochem Co Ltd Polycarbonate for disk substrate
JPS646020A (en) * 1987-06-30 1989-01-10 Idemitsu Petrochemical Co Production of polycarbonate for disk base

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61221225A (en) * 1985-03-28 1986-10-01 Idemitsu Petrochem Co Ltd Production of molding polycarbonate resin
JPS63218730A (en) * 1987-03-09 1988-09-12 Teijin Chem Ltd Purification of polycarbonate granules
JPS63316313A (en) * 1987-06-18 1988-12-23 Idemitsu Petrochem Co Ltd Polycarbonate for disk substrate
JPS646020A (en) * 1987-06-30 1989-01-10 Idemitsu Petrochemical Co Production of polycarbonate for disk base

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03116559A (en) * 1989-09-29 1991-05-17 Sony Corp Optical information recording medium
JPH11342510A (en) * 1998-04-03 1999-12-14 Teijin Chem Ltd Optical molding material

Also Published As

Publication number Publication date
JP2672094B2 (en) 1997-11-05

Similar Documents

Publication Publication Date Title
US5116547A (en) Method of coloring polycarbonate extruded or molded products for optical members
ATE63179T1 (en) SOLID POLYMERIC SUBSTRATE FOR OPTICAL DISCS AND OPTICAL DISCS MADE FROM SUCH SUBSTRATE.
JPS57169929A (en) Magnetic recording medium and its manufacture
PH24374A (en) Rapid curing,thermally stable adhesive
DE59010809D1 (en) Thermosetting reactive resin mixtures
EP0317263A3 (en) Optical material
ES8403955A1 (en) Compositions for forming poly(oxazolidone/urethane)thermosets.
KR880004035A (en) Curable urethane composition and its manufacturing method
JPS6431690A (en) Polycarbonate molding material for optical disk
JPS5355362A (en) Organopolysiloxane composition
SU564803A3 (en) Glass article
JPS56127341A (en) New aliphatic triisocyanate, its preparation and nonyellowing polyurethane resin hardener composed thereof
JPS62207358A (en) Polycarbonate resin composition for optical disc
GB1295553A (en)
JPS57117140A (en) Recording, erase and readout device for information
ATE78271T1 (en) CURING COMPONENT FOR SYNTHETIC RESIN, CURABLE MIXTURES CONTAINING THEM AND THEIR USE.
KR910006937A (en) Optical information recording media
JPS6443558A (en) Resin composition excellent in compatibility
JPS5397049A (en) Thermoplastic resin composition
JPS5334853A (en) Thermoplastic resin composition
JPS6424829A (en) Polycarbonate molding material for optical disc
GB1262636A (en) Cyclisable aromatic polyamides
JPS5540781A (en) Polycarbonate resin film
JPS5712021A (en) Photosensitive unsaturated polymer and photosensitive resin composition containing the same
JPS5290545A (en) Transparent and high-density elastic resin composition