http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-527974-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7728edf9bea93dda2eaf7b3608d4a339 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a8a5010b73c3e303b09c22e8103427bc |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2209-082 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2223-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2201-102 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2221-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2221-041 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2201-042 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2201-041 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2205-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M177-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M177-00 |
| filingDate | 1939-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1940-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-527974-A |
| titleOfInvention | Improvements in and relating to the preparation of colloidal suspensions |
| abstract | 527,974. Colloidal sols. ACHESON, Ltd., E. G., and SCOTT, L. G. April 14, 1939, Nos. 11415/39 and 8381/40. [Classes 1 (i) and 91] In the preparation of a colloidal suspension of a solid lubricant, e.g. graphite, mica and talc, in a non-aqueous medium by transfer from an aqueous suspension, the non-aqueous medium comprises substances of high molecular weight, i.e. above 600, which are wholly or partly soluble therein and are capable of being adsorbed by the lubricant. Suitable substances of high molecular weight are :-(a) rape seed oil or a mixture thereof with mineral oil which has been subjected to silent electric discharge ; (b) fatty oils such as black or white mustard seed, linseed, cottonseed, hempseed, soya bean, sesame, tung, sunflower and walnut oil airblown at elevated temperature or condensed either alone or in admixture with other compounds in the presence of catalysts or subjected to silent electric discharge ; (c) liquids and phosphatics which may be polymerized or condensed ; (d) rubber dissolved in mineral oil in the presence of oxygen; (e) polymerized unsaturated hydrocarbons, e.g. polyolefines prepared by burning olefines into a hydrocarbon diluent at a temperature below -10‹C. in the presence of catalysts such as aluminium chloride or boron trifluoride; (f) any of the above substances modified by the addition of sulphuric acid groups. An example describes agitating an aqueous dispersion of graphite with "elektrion" oil with or without a diluent, by which water separates and is finally removed by heating under vacuum. The suspension may be diluted with mineral oil or "elektrion" oil or a mixture. Alternatively, a solution of cephalin and mineral oil may be used. Suitable diluents are mineral oil, benzene, toluene, gasoline, kerosene, associated hydrocarbons, chlorinated ethers and esters. Specifications 27312/07 and 4155/12, [both in Class 91], are referred to. |
| priorityDate | 1939-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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