IT1193850B - Videodisco e composizone di stampaggio per lo stesso - Google Patents
Videodisco e composizone di stampaggio per lo stessoInfo
- 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
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)
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)
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 |
US4472336A (en) * | 1981-04-17 | 1984-09-18 | Matsushita Electric Industrial Co., Ltd. | Method of manufacturing video disc |
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)
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 |
US4151132A (en) * | 1977-07-25 | 1979-04-24 | Rca Corporation | Molding composition |
DE2810367C2 (de) * | 1977-03-15 | 1984-12-20 | Rca Corp., New York, N.Y. | Informationsspeicherplatte |
US4129536A (en) * | 1977-07-25 | 1978-12-12 | Rca Corporation | Vinyl chloride based injection molding composition |
-
1978
- 1978-11-13 US US05/959,846 patent/US4241120A/en not_active Expired - Lifetime
-
1979
- 1979-10-19 AU AU51973/79A patent/AU529154B2/en not_active Ceased
- 1979-10-24 IT IT2677279A patent/IT1193850B/it active
- 1979-11-06 CA CA000339285A patent/CA1143835A/en not_active Expired
- 1979-11-07 JP JP14491879A patent/JPS5567950A/ja active Pending
- 1979-11-09 DE DE19792945218 patent/DE2945218A1/de not_active Withdrawn
- 1979-11-09 GB GB7938948A patent/GB2037054B/en not_active Expired
- 1979-11-12 AT AT723179A patent/AT372536B/de not_active IP Right Cessation
- 1979-11-12 FR FR7927812A patent/FR2441899A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR2441899A1 (fr) | 1980-06-13 |
GB2037054A (en) | 1980-07-02 |
AT372536B (de) | 1983-10-25 |
GB2037054B (en) | 1983-05-05 |
JPS5567950A (en) | 1980-05-22 |
AU5197379A (en) | 1980-05-22 |
CA1143835A (en) | 1983-03-29 |
DE2945218A1 (de) | 1980-05-22 |
AU529154B2 (en) | 1983-05-26 |
US4241120A (en) | 1980-12-23 |
IT7926772A0 (it) | 1979-10-24 |
ATA723179A (de) | 1983-02-15 |
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