DE2432406B2 - RECORD DIMENSIONS - Google Patents
RECORD DIMENSIONSInfo
- Publication number
- DE2432406B2 DE2432406B2 DE19742432406 DE2432406A DE2432406B2 DE 2432406 B2 DE2432406 B2 DE 2432406B2 DE 19742432406 DE19742432406 DE 19742432406 DE 2432406 A DE2432406 A DE 2432406A DE 2432406 B2 DE2432406 B2 DE 2432406B2
- Authority
- DE
- Germany
- Prior art keywords
- polyvinyl chloride
- record
- filler
- calcium carbonate
- fine
- 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.)
- Ceased
Links
- 239000004800 polyvinyl chloride Substances 0.000 claims description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- 238000007792 addition Methods 0.000 claims description 4
- 229920001756 Polyvinyl chloride acetate Polymers 0.000 claims description 3
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 3
- 239000011118 polyvinyl acetate Substances 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000975 dye Substances 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000006735 deficit Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920001800 Shellac 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
- 239000003086 colorant Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 150000003997 cyclic ketones Chemical class 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004208 shellac Substances 0.000 description 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 1
- 229940113147 shellac Drugs 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
Die Erfindung bezieht sich auf eine Schallplattenmasse auf der Basis von Polyvinylchlorid oder eines Polyvinyichlorid/Polyvinylacetat-Copolymerisats mit Zusätzen von Farbstoffen sowie Gleitmitteln und Stabilisatoren.The invention relates to a record composition based on polyvinyl chloride or a Polyvinyl chloride / polyvinyl acetate copolymer with additions of dyes and lubricants and Stabilizers.
Für die Herstellung von Mikrorillen-Schallplatten haben sich thermoplastische Kunststoffe auf der Basis von Polyvinylchlorid oder Mischpolymerisaten aus Vinylchlorid und Vinylacetat weitgehend durchgesetzt, wenngleich die relativ hohen Rohstoffpreise — u.a. ausgelöst durch eine Verknappung auf dem Erdölsektor — immer wieder dazu Anlaß geben, nach Möglichkeiten einer Materialeinsparung zu suchen.For the production of micro-grooved records, thermoplastic plastics have become the basis largely enforced by polyvinyl chloride or copolymers of vinyl chloride and vinyl acetate, albeit the relatively high raw material prices - triggered, among other things, by a shortage in the oil sector - always give reason to look for ways to save material.
So hat man beispielsweise versucht, Schallplatten aus zwei verschiedenen Materialien herzustellen, und zwar in der Weise, daß lediglich für den Rillenbereich teueres Material, für den inneren rillenfreien Plattenbereich dagegen ein erheblich billigerer Werkstoff verwendet wird.For example, attempts have been made to make records from two different materials in such a way that material which is expensive only for the groove area, for the inner groove-free plate area on the other hand, a considerably cheaper material is used.
Ein anderer Vorschlag geht dahin, einen Teil des teueren Rohmaterials durch billige Füllstoffe zu ersetzen, eine Maßnahme, die insbesondere aus der Schellacktechnik bekannt ist So ist z.B. aus derAnother suggestion is to replace some of the expensive raw material with cheap fillers replace, a measure that is particularly known from the shellac technique
ίο deutschen Auslegeschrift 10 79 339 eine Schallplattenmasse auf der Basis cyclischer Ketone und Formaldehyd bekannt, die geringe Zusätze von Polyvinylchlorid, Calciumcarbonat Hartwachs und Farbstoffen enthält und bei der ca. 50 Gewichtsprozent des Basismaterials durch einen Füllstoff in Form von Schiefermehl ersetzt sind. Der Zusatz derartiger Füllstoffe führt jedoch zu Oberflächengeräuschen und damit zu einer Qualitätsminderung, die aufgrund der inzwischen gestiegenen Ansprüche an die Wiedergabequalität nicht mehr akzeptiert wird.ίο German Auslegeschrift 10 79 339 a record mass on the basis of cyclic ketones and formaldehyde known, the low additions of polyvinyl chloride, Calcium carbonate hard wax and coloring agents and contains approx. 50 percent by weight of the base material are replaced by a filler in the form of slate flour. However, the addition of such fillers leads to Surface noise and thus a reduction in quality due to the meanwhile increased Claims to the reproduction quality is no longer accepted.
Es wurde nun gefunden, daß Schallplatten auf PVC- oder PVC/PVA-Basis auch bei Zusatz von bestimmten Füllstoffen ohne akustische Qualitätsminderung und, im Falle geringer Schallplattendicke, auch ohne Beein: It has now been found that vinyl records based on PVC or PVC / PVA can be produced without impairing the acoustic quality, even if certain fillers are added, and, in the case of record thicknesses, without impairment :
trächtigung der mechanischen Eigenschaften hergestellt werden können. Ausgehend von einer Schallplattenmasse der eingangs genannten Art wird dies erfindungsgemäß dadurch erreicht daß bis zu 50 Gewichtsprozent des PVC- oder PVC/PVA-Copolymer-Basismaterials durch einen aus sehr feinkörnigem Calciumcarbonat bestehenden Füllstoff ersetzt sind.Impairment of the mechanical properties can be produced. Based on a record mass of the type mentioned at the outset, this is achieved according to the invention in that up to 50 percent by weight of the PVC or PVC / PVA copolymer base material are replaced by a filler consisting of very fine-grain calcium carbonate.
In ebenso vorteilhafter Weise kann als Füllstoff auch sehr feinkörniges fettsäureumhülltes Calciumcarbonat zugesetzt werdein.In an equally advantageous manner, very fine-grain calcium carbonate coated with fatty acids can also be used as filler be added.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742432406 DE2432406B2 (en) | 1974-07-05 | 1974-07-05 | RECORD DIMENSIONS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742432406 DE2432406B2 (en) | 1974-07-05 | 1974-07-05 | RECORD DIMENSIONS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2432406A1 DE2432406A1 (en) | 1976-01-22 |
| DE2432406B2 true DE2432406B2 (en) | 1976-12-30 |
Family
ID=5919824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19742432406 Ceased DE2432406B2 (en) | 1974-07-05 | 1974-07-05 | RECORD DIMENSIONS |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2432406B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2818490A1 (en) * | 1978-04-27 | 1979-10-31 | Teldec Telefunken Decca | DISC-SHAPED INFORMATION CARRIER WITH HIGH DENSITY |
-
1974
- 1974-07-05 DE DE19742432406 patent/DE2432406B2/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2818490A1 (en) * | 1978-04-27 | 1979-10-31 | Teldec Telefunken Decca | DISC-SHAPED INFORMATION CARRIER WITH HIGH DENSITY |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2432406A1 (en) | 1976-01-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BHV | Refusal |