IT1193850B - Videodisco e composizone di stampaggio per lo stesso - Google Patents

Videodisco e composizone di stampaggio per lo stesso

Info

Publication number
IT1193850B
IT1193850B IT2677279A IT2677279A IT1193850B IT 1193850 B IT1193850 B IT 1193850B IT 2677279 A IT2677279 A IT 2677279A IT 2677279 A IT2677279 A IT 2677279A IT 1193850 B IT1193850 B IT 1193850B
Authority
IT
Italy
Prior art keywords
same
molding composition
video disk
video
disk
Prior art date
Application number
IT2677279A
Other languages
English (en)
Other versions
IT7926772A0 (it
Inventor
Pabitra Datta
Ronald Norman Friel
Original Assignee
Rca 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
Application filed by Rca Corp filed Critical Rca Corp
Publication of IT7926772A0 publication Critical patent/IT7926772A0/it
Application granted granted Critical
Publication of IT1193850B publication Critical patent/IT1193850B/it

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
    • G11B9/061—Record carriers characterised by their structure or form or by the selection of the material; Apparatus or processes specially adapted for the manufacture of record carriers
    • G11B9/063—Record carriers characterised by their structure or form or by the selection of the material; Apparatus or processes specially adapted for the manufacture of record carriers characterised by the selection of the material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • 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
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • 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
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2998—Coated including synthetic resin or 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]
    • Y10T428/31652—Of asbestos
    • Y10T428/31663—As siloxane, silicone or silane

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)
IT2677279A 1978-11-13 1979-10-24 Videodisco e composizone di stampaggio per lo stesso IT1193850B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/959,846 US4241120A (en) 1978-11-13 1978-11-13 Video discs and molding compositions therefor

Publications (2)

Publication Number Publication Date
IT7926772A0 IT7926772A0 (it) 1979-10-24
IT1193850B true IT1193850B (it) 1988-08-24

Family

ID=25502486

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2677279A IT1193850B (it) 1978-11-13 1979-10-24 Videodisco e composizone di stampaggio per lo stesso

Country Status (9)

Country Link
US (1) US4241120A (it)
JP (1) JPS5567950A (it)
AT (1) AT372536B (it)
AU (1) AU529154B2 (it)
CA (1) CA1143835A (it)
DE (1) DE2945218A1 (it)
FR (1) FR2441899A1 (it)
GB (1) GB2037054B (it)
IT (1) IT1193850B (it)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1139503B (it) * 1980-10-27 1986-09-24 Rca Corp Dischi di supporto di informazioni ad elevata densita'
US4490283A (en) * 1981-02-27 1984-12-25 Mitech Corporation Flame retardant thermoplastic molding compounds of high electroconductivity
GB2098221B (en) * 1981-04-17 1985-02-06 Matsushita Electric Ind Co Ltd Method of producing video discs
JPS57177047A (en) * 1981-04-22 1982-10-30 Tokuyama Sekisui Kogyo Kk Electrically conductive resin composition and video disc record
JPS57212627A (en) * 1981-06-24 1982-12-27 Tdk Corp Optical recording method
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
JPS5880140A (ja) * 1981-11-02 1983-05-14 Victor Co Of Japan Ltd 記録媒体の製造法
US4596669A (en) * 1981-12-24 1986-06-24 Mitech Corporation Flame retardant thermoplastic molding compositions of high electroconductivity
JPS59191152A (ja) * 1983-04-14 1984-10-30 Victor Co Of Japan Ltd 高密度情報信号記録媒体
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
US2997451A (en) * 1957-03-07 1961-08-22 Harry B Miller Conductive phonograph record containing thermoplastic resin and carbon black
US3842217A (en) * 1971-03-22 1974-10-15 Rca Corp Record fabrication of a capacitive type storage medium
US3909517A (en) * 1971-03-22 1975-09-30 Rca Corp Disc records with groove bottom depth variations
US3842194A (en) * 1971-03-22 1974-10-15 Rca Corp Information records and recording/playback systems therefor
US3770667A (en) * 1971-10-01 1973-11-06 Abc Dispersion Chem Co Phonograph record additive
JPS513341B2 (it) * 1971-12-27 1976-02-02
US3833408A (en) * 1972-04-19 1974-09-03 Rca Corp Video discs having a methyl alkyl silicone coating
US3833541A (en) * 1972-07-03 1974-09-03 Borden Inc Molding powder of aggregates containing carbon black embedded in matrix of vinyl chloride-acetate resin and heat-stabilizer
DE2810367C2 (de) * 1977-03-15 1984-12-20 Rca Corp., New York, N.Y. Informationsspeicherplatte
US4151132A (en) * 1977-07-25 1979-04-24 Rca Corporation Molding composition
US4129536A (en) * 1977-07-25 1978-12-12 Rca Corporation Vinyl chloride based injection molding composition

Also Published As

Publication number Publication date
AU5197379A (en) 1980-05-22
DE2945218A1 (de) 1980-05-22
ATA723179A (de) 1983-02-15
GB2037054B (en) 1983-05-05
AT372536B (de) 1983-10-25
AU529154B2 (en) 1983-05-26
CA1143835A (en) 1983-03-29
JPS5567950A (en) 1980-05-22
US4241120A (en) 1980-12-23
GB2037054A (en) 1980-07-02
IT7926772A0 (it) 1979-10-24
FR2441899A1 (fr) 1980-06-13

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