http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-352720-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d8d9abe622e84b5542ebfc588441e845 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L93-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L93-02 |
| filingDate | 1930-07-02^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1931-07-16^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-352720-A |
| titleOfInvention | Improvements in and relating to shellac composition |
| abstract | A shellac composition for gramophone records comprises shellac, filler, and organic colouring matter, e.g. azine, induline, nigrosine, which tends to increase the plasticity of the shellac and therefore permits a larger proportion of filler to be used than when the composition is coloured with the usual carbon black. The composition may comprise 23,75 parts of shellac, 2 of nigrosine, 4 of cotton flock and 70,25 of mineral filler. |
| priorityDate | 1930-07-02^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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