FR2354607A1 - Disques d'enregistrement de signaux d'information - Google Patents

Disques d'enregistrement de signaux d'information

Info

Publication number
FR2354607A1
FR2354607A1 FR7717870A FR7717870A FR2354607A1 FR 2354607 A1 FR2354607 A1 FR 2354607A1 FR 7717870 A FR7717870 A FR 7717870A FR 7717870 A FR7717870 A FR 7717870A FR 2354607 A1 FR2354607 A1 FR 2354607A1
Authority
FR
France
Prior art keywords
information signal
signal recording
recording discs
unsaturated nitrile
record
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
FR7717870A
Other languages
English (en)
Other versions
FR2354607B1 (fr
Inventor
Akira Kaneko
Masaki Ohya
Masayasu Suzuki
Akio Kobayashi
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.)
Kureha Corp
Original Assignee
Kureha Corp
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
Priority claimed from JP51068406A external-priority patent/JPS5918762B2/ja
Priority claimed from JP7202276A external-priority patent/JPS52154601A/ja
Priority claimed from JP14853876A external-priority patent/JPS5373247A/ja
Application filed by Kureha Corp filed Critical Kureha Corp
Publication of FR2354607A1 publication Critical patent/FR2354607A1/fr
Application granted granted Critical
Publication of FR2354607B1 publication Critical patent/FR2354607B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/18—Homopolymers or copolymers of nitriles
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/68—Record carriers
    • G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
    • G11B3/705—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers characterised by the selection of the material only
    • 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]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31928—Ester, halide or nitrile of addition polymer
    • 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]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31935—Ester, halide or nitrile of addition polymer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Graft Or Block Polymers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

L'invention concerne un disque phonographique ou vidéo formé à partir d'une résine qui comprend au moins un copolymère de nitrile insaturé et a une tenue en nitrile insaturé de 40 à 90 % en poids, le disque présentant une température de flexion Clash-Berg de 50 à 120 degrés C, une énergie de choc absorbé d'au moins 0,5 kg/cm quand on fait l'essai sur un échantillon d'essai de 2 mm d'épaisseur, et une dureté Shore D de 75 à 95. Le disque d'enregistrement ainsi obtenu a d'excellentes propriétés et en particulier une bonne propriété antistatique
FR7717870A 1976-06-11 1977-06-10 Disques d'enregistrement de signaux d'information Granted FR2354607A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP51068406A JPS5918762B2 (ja) 1976-06-11 1976-06-11 非帯電性録音又は録画盤
JP7202276A JPS52154601A (en) 1976-06-18 1976-06-18 Nonncharged sound or video recording disk
JP14853876A JPS5373247A (en) 1976-12-10 1976-12-10 Sound records or video disks

Publications (2)

Publication Number Publication Date
FR2354607A1 true FR2354607A1 (fr) 1978-01-06
FR2354607B1 FR2354607B1 (fr) 1981-12-24

Family

ID=27299733

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7717870A Granted FR2354607A1 (fr) 1976-06-11 1977-06-10 Disques d'enregistrement de signaux d'information

Country Status (8)

Country Link
US (1) US4125654A (fr)
AU (1) AU507487B2 (fr)
CA (1) CA1089564A (fr)
DE (1) DE2726063C3 (fr)
FR (1) FR2354607A1 (fr)
GB (1) GB1585877A (fr)
IT (1) IT1076067B (fr)
NL (1) NL167453C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008543A1 (fr) * 1978-08-28 1980-03-05 Discovision Associates Procédé de moulage d'une composition pour disque vidéo

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54140503A (en) * 1978-04-24 1979-10-31 Kureha Chemical Ind Co Ltd Transparent resin composition for information disk
US4310919A (en) * 1979-01-15 1982-01-12 Discovision Associates Optical video disc structure
US4441179A (en) * 1979-01-15 1984-04-03 Discovision Associates Optical video disc structure
NL8005674A (nl) * 1980-10-15 1982-05-03 Philips Nv Optisch uitleesbare informatieschijf.
JPS57186241A (en) * 1981-05-11 1982-11-16 Mitsui Toatsu Chem Inc Optical information recording disc
JPS5827737A (ja) * 1981-08-12 1983-02-18 Mitsubishi Rayon Co Ltd 光学式情報記録体用メタクリル樹脂組成物
JPS61110352A (ja) * 1984-11-02 1986-05-28 Victor Co Of Japan Ltd 情報信号記録媒体

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB645105A (en) 1947-09-17 1950-10-25 Us Rubber Co Improvements in phonograph records
US2997451A (en) * 1957-03-07 1961-08-22 Harry B Miller Conductive phonograph record containing thermoplastic resin and carbon black
US3130065A (en) * 1960-08-09 1964-04-21 Interchem Corp New flocked articles and method of making them
GB1143408A (en) * 1965-04-09 1969-02-19 Ici Ltd Thermoplastic compositions derived from a diene rubber and a resin
US3730767A (en) * 1967-06-24 1973-05-01 Fuji Photo Film Co Ltd Undercoating composition for a magnetic recording medium
DE1907957B2 (de) * 1969-02-18 1977-07-21 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von flexiblen magnetogrammtraegern
US4058649A (en) * 1971-10-15 1977-11-15 Mobil Oil Corporation Coating compositions and thermoplastic film substrates coated therewith
US4057831A (en) * 1972-09-05 1977-11-08 U.S. Philips Corporation Video record disc manufactured by a process involving chemical or sputter etching
US4065521A (en) * 1973-02-26 1977-12-27 Texaco Inc. Acrylate-butadiene graft copolymers and reinforced plastic compositions containing such copolymers
US4046932A (en) * 1973-04-17 1977-09-06 Basf Aktiengesellschaft Magnetic recording discs
US3832274A (en) * 1973-06-06 1974-08-27 Lord Corp Fast curing adhesives

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008543A1 (fr) * 1978-08-28 1980-03-05 Discovision Associates Procédé de moulage d'une composition pour disque vidéo

Also Published As

Publication number Publication date
AU2603877A (en) 1978-12-14
AU507487B2 (en) 1980-02-14
NL167453B (nl) 1981-07-16
US4125654A (en) 1978-11-14
GB1585877A (en) 1981-03-11
IT1076067B (it) 1985-04-22
DE2726063C3 (de) 1980-01-10
CA1089564A (fr) 1980-11-11
FR2354607B1 (fr) 1981-12-24
NL167453C (nl) 1981-12-16
DE2726063B2 (de) 1979-05-17
NL7706387A (nl) 1977-12-13
DE2726063A1 (de) 1977-12-15

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Legal Events

Date Code Title Description
ST Notification of lapse