EP4595054A1 - Phonograph records - Google Patents
Phonograph recordsInfo
- Publication number
- EP4595054A1 EP4595054A1 EP23797833.3A EP23797833A EP4595054A1 EP 4595054 A1 EP4595054 A1 EP 4595054A1 EP 23797833 A EP23797833 A EP 23797833A EP 4595054 A1 EP4595054 A1 EP 4595054A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bioplastic
- composition
- phonograph record
- graphene
- colourant
- 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.)
- Pending
Links
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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
Definitions
- Phonograph Records Field of the Invention The invention relates to phonograph records.
- Background to the Invention Current phonograph records/discs are made of PVC (polyvinyl chloride), often with added dyes, lubricants and stabilisers. Attempts have been made to reduce the dependency on PVC by using two different materials in such a way that PVC is used only for the groove area while a cheaper material is used for the inner groove-free area of the disc. Another proposal is to replace part of the expensive raw material with cheap fillers. The addition of such fillers, however, leads to surface noise and thus to a reduction in quality, which is no longer acceptable due to the increased demands on playback quality.
- a phonograph record formed at least partially from a bioplastic, that is to say, a plastics material derived from biological substances rather than from petroleum, many types of which are biodegradable.
- a suitable plastics material is PLA (polylactic acid).
- the bioplastic is in admixture with graphene or graphite.
- the bioplastic is modified with one or more of an inert filler and an impact modifier. The presence of graphene and/or graphite will reduce significantly the build up of static, improving scratch resistance and rigidity.
- the graphene permits the records to be thinner pressings, thereby reducing the amount of material needed.
- a phonograph record in accordance with the present invention may have the following composition: PLA biopolymer 87 – 98% Sugar starch wax 0.25 – 5% Single layer and multi-layer graphene 0.1 – 3% Carbon black colourant 2 – 5%
- the upper limit for the PLA biopolymer may be, for instance, 97.65%.
- the black colourant may be substituted by other colourants according to the desired aesthetic effect.
- the components are admixed using conventional equipment including twin screw extrusion to form a fully compounded material.
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)
Abstract
A phonograph record is formed at least partially from a bioplastic. The bioplastic is preferably PLA, preferably mixed with graphene and/or graphite.
Description
Phonograph Records Field of the Invention The invention relates to phonograph records. Background to the Invention Current phonograph records/discs are made of PVC (polyvinyl chloride), often with added dyes, lubricants and stabilisers. Attempts have been made to reduce the dependency on PVC by using two different materials in such a way that PVC is used only for the groove area while a cheaper material is used for the inner groove-free area of the disc. Another proposal is to replace part of the expensive raw material with cheap fillers. The addition of such fillers, however, leads to surface noise and thus to a reduction in quality, which is no longer acceptable due to the increased demands on playback quality. Statements of the Invention According to the present invention, there is provided a phonograph record formed at least partially from a bioplastic, that is to say, a plastics material derived from biological substances rather than from petroleum, many types of which are biodegradable. An example of a suitable plastics material is PLA (polylactic acid). Preferably, the bioplastic is in admixture with graphene or graphite.
Preferably, the bioplastic is modified with one or more of an inert filler and an impact modifier. The presence of graphene and/or graphite will reduce significantly the build up of static, improving scratch resistance and rigidity. In addition, the graphene permits the records to be thinner pressings, thereby reducing the amount of material needed. Overall, the use of phonograph records of the invention will improve the environmental impact for the music industry. Detailed Description of the Invention A phonograph record in accordance with the present invention may have the following composition: PLA biopolymer 87 – 98% Sugar starch wax 0.25 – 5% Single layer and multi-layer graphene 0.1 – 3% Carbon black colourant 2 – 5% The upper limit for the PLA biopolymer may be, for instance, 97.65%. The black colourant may be substituted by other colourants according to the desired aesthetic effect. The components are admixed using conventional equipment including twin screw extrusion to form a fully compounded material.
Claims
CLAIMS 1. A phonograph record formed at least partially from a bioplastic. 2. A phonograph record according to Claim 1, wherein the bioplastic is PLA. 3. A phonograph record according to Claim 1 or Claim 2, wherein the bioplastic is in admixture with graphene and/or graphite. 4. A phonograph record according to any of the preceding claims, wherein the bioplastic is modified with one or more of an inert filler and an impact modifier. 5. A phonograph record according to any of the preceding claims, wherein the bioplastic is in admixture with sugar starch wax. 6. A composition for making a phonograph record, the composition comprising a PLA biopolymer and graphene and/or graphite. 7. A composition according to Claim 6, wherein the composition includes single starch wax. 8. A composition according to Claim 6 or Claim 7, wherein the composition includes a carbon black colourant. 9. A composition according to any of claims 6 to 8, the composition comprising: PLA biopolymer 87 – 98% Sugar starch wax 0.25 – 5%
Single layer and multi-layer graphene 0.1 – 3% Colourant 2 – 5% 10. A composition according to Claims 9, wherein the colourant is a carbon black colourant.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB2214001.6A GB202214001D0 (en) | 2022-09-26 | 2022-09-26 | Phonograph records |
| PCT/GB2023/052493 WO2024069161A1 (en) | 2022-09-26 | 2023-09-26 | Phonograph records |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4595054A1 true EP4595054A1 (en) | 2025-08-06 |
Family
ID=83978675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23797833.3A Pending EP4595054A1 (en) | 2022-09-26 | 2023-09-26 | Phonograph records |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4595054A1 (en) |
| CN (1) | CN120266206A (en) |
| GB (1) | GB202214001D0 (en) |
| WO (1) | WO2024069161A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB202406446D0 (en) * | 2024-05-08 | 2024-06-19 | Evolution Music Ltd | Recording disc |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106189127A (en) * | 2016-07-07 | 2016-12-07 | 上海金发科技发展有限公司 | A kind of modified polylactic acid coblended matter and preparation method thereof |
| IT202100001769A1 (en) * | 2021-01-28 | 2022-07-28 | Tibi Bio S R L | PHONOGRAPH RECORD AND PROCESS FOR THE PRODUCTION OF A PHONOGRAPH RECORD |
-
2022
- 2022-09-26 GB GBGB2214001.6A patent/GB202214001D0/en not_active Ceased
-
2023
- 2023-09-26 EP EP23797833.3A patent/EP4595054A1/en active Pending
- 2023-09-26 WO PCT/GB2023/052493 patent/WO2024069161A1/en not_active Ceased
- 2023-09-26 CN CN202380081364.4A patent/CN120266206A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024069161A1 (en) | 2024-04-04 |
| GB202214001D0 (en) | 2022-11-09 |
| CN120266206A (en) | 2025-07-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20250425 |
|
| AK | Designated contracting states |
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| DAX | Request for extension of the european patent (deleted) |