GR3001262T3 - Stiff polymer substrate for use as a magnetic-registration carrier, and magnetic disc obtained from this substrate - Google Patents

Stiff polymer substrate for use as a magnetic-registration carrier, and magnetic disc obtained from this substrate

Info

Publication number
GR3001262T3
GR3001262T3 GR90401220T GR900401220T GR3001262T3 GR 3001262 T3 GR3001262 T3 GR 3001262T3 GR 90401220 T GR90401220 T GR 90401220T GR 900401220 T GR900401220 T GR 900401220T GR 3001262 T3 GR3001262 T3 GR 3001262T3
Authority
GR
Greece
Prior art keywords
degrees
range
lying
mpa
substrate
Prior art date
Application number
GR90401220T
Other languages
English (en)
Inventor
Claude Bonnebat
Alain Morin
Jean-Pierre Quentin
Original Assignee
Rhone Poulenc Chimie
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 Rhone Poulenc Chimie filed Critical Rhone Poulenc Chimie
Publication of GR3001262T3 publication Critical patent/GR3001262T3/el

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates
    • G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates
    • G11B5/73937—Substrates having an organic polymer comprising a ring structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Record Carriers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Laminated Bodies (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)
GR90401220T 1986-09-29 1990-12-28 Stiff polymer substrate for use as a magnetic-registration carrier, and magnetic disc obtained from this substrate GR3001262T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8613714A FR2604552A1 (fr) 1986-09-29 1986-09-29 Substrat polymere rigide utilisable comme support d'enregistrement magnetique et le disque magnetique obtenu a partir de ce substrat

Publications (1)

Publication Number Publication Date
GR3001262T3 true GR3001262T3 (en) 1992-08-25

Family

ID=9339462

Family Applications (1)

Application Number Title Priority Date Filing Date
GR90401220T GR3001262T3 (en) 1986-09-29 1990-12-28 Stiff polymer substrate for use as a magnetic-registration carrier, and magnetic disc obtained from this substrate

Country Status (13)

Country Link
US (1) US4987020A (el)
EP (1) EP0263043B1 (el)
JP (1) JPS6391823A (el)
KR (1) KR930004443B1 (el)
CN (1) CN1012328B (el)
AT (1) ATE57782T1 (el)
BR (1) BR8704984A (el)
DE (1) DE3765739D1 (el)
DK (1) DK509787A (el)
ES (1) ES2018293B3 (el)
FR (1) FR2604552A1 (el)
GR (1) GR3001262T3 (el)
PT (1) PT85803B (el)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0417322B1 (en) * 1989-03-31 1996-01-17 Nippon Petrochemicals Company, Limited Molding method of magnetic disc substrate
JPH05320396A (ja) * 1991-01-31 1993-12-03 Unitika Ltd 軽量化ポリエステルフイルムおよびその製造方法
JPH0885868A (ja) * 1994-07-20 1996-04-02 Hitachi Ltd 磁気記録媒体及びその製造方法
US7179551B2 (en) 1999-02-12 2007-02-20 General Electric Company Poly(arylene ether) data storage media
BR0008208A (pt) * 1999-02-12 2002-02-19 Gen Electric Meios de armazenamento de dados
CN1247347C (zh) * 2000-04-27 2006-03-29 Sms迪马格股份公司 用于铸钢连铸结晶器的结晶器壁
JP2004536693A (ja) * 2001-04-19 2004-12-09 ゼネラル・エレクトリック・カンパニイ スピンコート媒体
CN108085653A (zh) * 2017-12-20 2018-05-29 李春田 一种铝合金表面处理方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4910245A (el) * 1972-05-26 1974-01-29
FR2438061A1 (fr) * 1978-10-05 1980-04-30 Rhone Poulenc Ind Copolyesters alcoylaromatiques thermotropes
FR2438062A1 (fr) * 1978-10-05 1980-04-30 Rhone Poulenc Ind Procede d'obtention de copolyesters alcoylaromatiques
FR2450267A1 (fr) * 1979-03-02 1980-09-26 Rhone Poulenc Ind Copolyesters aromatiques thermotropes et leurs procedes de preparation
US4355133A (en) * 1981-07-27 1982-10-19 Celanese Corporation Polyester of 6-hydroxy-2-naphthoic acid, 4-hydroxy benzoic acid, 1,4-cyclohexanedicarboxylic acid, and aromatic diol capable of readily undergoing melt processing to form articles possessing high impact properties
JPS60155424A (ja) * 1984-01-26 1985-08-15 Daicel Chem Ind Ltd 大径のポリカ−ボネ−ト製光デイスク基板およびその製造法
JPS60229220A (ja) * 1984-03-09 1985-11-14 Toshiba Corp 磁気記録媒体
JPS6141539A (ja) * 1984-08-06 1986-02-27 鐘淵化学工業株式会社 金属を積層した芳香族ポリエステル成型物
JPS6190343A (ja) * 1984-10-09 1986-05-08 Polyplastics Co 光ディスク
US4680211A (en) * 1985-07-25 1987-07-14 The Dow Chemical Company Recording disks

Also Published As

Publication number Publication date
DE3765739D1 (de) 1990-11-29
JPS6391823A (ja) 1988-04-22
EP0263043A1 (fr) 1988-04-06
US4987020A (en) 1991-01-22
FR2604552A1 (fr) 1988-04-01
CN87106605A (zh) 1988-04-06
CN1012328B (zh) 1991-04-10
BR8704984A (pt) 1988-05-17
ATE57782T1 (de) 1990-11-15
DK509787D0 (da) 1987-09-28
KR930004443B1 (ko) 1993-05-27
KR880004440A (ko) 1988-06-07
PT85803B (pt) 1990-08-31
ES2018293B3 (es) 1991-04-01
PT85803A (fr) 1987-10-01
DK509787A (da) 1988-03-30
EP0263043B1 (fr) 1990-10-24

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