DE2818490B2 - - Google Patents
Info
- Publication number
- DE2818490B2 DE2818490B2 DE2818490A DE2818490A DE2818490B2 DE 2818490 B2 DE2818490 B2 DE 2818490B2 DE 2818490 A DE2818490 A DE 2818490A DE 2818490 A DE2818490 A DE 2818490A DE 2818490 B2 DE2818490 B2 DE 2818490B2
- Authority
- DE
- Germany
- Prior art keywords
- molding compound
- information carrier
- additives
- added
- scanner
- 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
Links
- 238000000465 moulding Methods 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 14
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 7
- 239000000654 additive Substances 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 5
- -1 amino fatty acid esters Chemical class 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- 125000003700 epoxy group Chemical group 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims 1
- 239000004416 thermosoftening plastic Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 239000000969 carrier Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004049 embossing Methods 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229920001756 Polyvinyl chloride acetate Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229940000425 combination drug Drugs 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000009757 thermoplastic moulding Methods 0.000 description 1
Classifications
-
- 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
- Y10T428/32—Composite [nonstructural laminate] of inorganic material having metal-compound-containing layer and having defined magnetic layer
- Y10T428/325—Magnetic layer next to second metal compound-containing layer
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Lubricants (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2818490A DE2818490C3 (de) | 1978-04-27 | 1978-04-27 | Preßmasse für die Herstellung formstarrer, scheibenförmiger Informationsträger |
| JP3845179A JPS54143601A (en) | 1978-04-27 | 1979-04-02 | High packing density disk information carrier |
| US06/032,480 US4515843A (en) | 1978-04-27 | 1979-04-23 | Disc-shaped information carrier having a high storage density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2818490A DE2818490C3 (de) | 1978-04-27 | 1978-04-27 | Preßmasse für die Herstellung formstarrer, scheibenförmiger Informationsträger |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2818490A1 DE2818490A1 (de) | 1979-10-31 |
| DE2818490B2 true DE2818490B2 (https=) | 1980-08-14 |
| DE2818490C3 DE2818490C3 (de) | 1985-06-27 |
Family
ID=6038152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2818490A Expired DE2818490C3 (de) | 1978-04-27 | 1978-04-27 | Preßmasse für die Herstellung formstarrer, scheibenförmiger Informationsträger |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4515843A (https=) |
| JP (1) | JPS54143601A (https=) |
| DE (1) | DE2818490C3 (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4808642A (en) * | 1985-04-26 | 1989-02-28 | Takiron Co., Ltd. | Chlorine-containing resin molding and material for use therewith |
| WO2001008137A1 (en) * | 1999-07-27 | 2001-02-01 | Toyo Kasei Kabushiki Kaisha | Method of producing records |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE944398C (de) * | 1952-07-10 | 1956-06-14 | Wacker Chemie Gmbh | Verfahren zur Herstellung von Schallplatten, Tonbaendern u. dgl. |
| DE976769C (de) * | 1953-12-29 | 1965-09-23 | Licentia Gmbh | Schallplattenmasse |
| DE1079339B (de) * | 1957-08-01 | 1960-04-07 | Leuna Werke Iawalter Ulbrichti | Verfahren zur Herstellung von Schallplatten |
| US4037253A (en) * | 1974-06-11 | 1977-07-19 | Matsushita Electric Industrial Co., Ltd. | Pressure sensitive signal reproducing system for a videodisc |
| DE2432406B2 (de) * | 1974-07-05 | 1976-12-30 | Polygram Gmbh, 2000 Hamburg | Schallplattenmasse |
| DE2540654A1 (de) * | 1975-09-12 | 1977-03-17 | Hoechst Ag | Kunststoffolie zur herstellung von bild-ton-informationstraegern |
| DE2545445C3 (de) * | 1975-10-10 | 1980-11-20 | Ted Bildplatten Ag Aeg-Telefunken- Teldec, Zug (Schweiz) | Aufzeichnungsträger mit antistatisch wirkender Gleitmittelschicht und Verfahren zur Beschichtung des Aufzeichnungsträgers |
-
1978
- 1978-04-27 DE DE2818490A patent/DE2818490C3/de not_active Expired
-
1979
- 1979-04-02 JP JP3845179A patent/JPS54143601A/ja active Pending
- 1979-04-23 US US06/032,480 patent/US4515843A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US4515843A (en) | 1985-05-07 |
| DE2818490A1 (de) | 1979-10-31 |
| JPS54143601A (en) | 1979-11-09 |
| DE2818490C3 (de) | 1985-06-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAP | Request for examination filed | ||
| OD | Request for examination | ||
| 8281 | Inventor (new situation) |
Free format text: BORCHARD, HEINZ, 2353 NORTORF, DE KNOTHE, HERBERT, DIPL.-ING., 2350 NEUMUENSTER, DE RYBKA, BRUNO, 2353 NORTORF, DE |
|
| C3 | Grant after two publication steps (3rd publication) | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: DMM MASTER TECHNIK GMBH FUER INFORMATIONSTRAEGER, |
|
| 8339 | Ceased/non-payment of the annual fee |