http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-688082-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d66aced64b418a4f422589fa7eee73a2 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2205-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2217-028 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2070-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2217-06 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M1-08 |
| filingDate | 1950-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1953-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-688082-A |
| titleOfInvention | An improved process for the preparation of lubricating oil additives |
| abstract | Vinyl aromatic compounds are subjected to simultaneous polymerization and alkylation in the presence of a Friedel-Crafts catalyst, preferably aluminium chloride. The reaction is preferably carried out by mixing the vinyl aromatic compound with a halo-alkane, preferably a chlorinated paraffin wax containing from 8 to 14.5 per cent chlorine, in an inert polar solvent, preferably carbon disulphide, nitrobenzene, nitromethane or orthodichlorobenzene, adding a complex obtained by mixing a Friedel-Crafts catalyst with nitromethane or nitrobenzene, maintaining the temperature within the range of from -20 DEG C. to room temperature for a time sufficient to polymerize substantially all the vinyl aromatic compound, and then raising the temperature to 60 DEG to 100 DEG C. to complete the reaction. Olefines may also be used as alkylating agents. The vinyl aromatic compound may be styrene, alpha-methyl styrene, para-methyl styrene, alpha-methyl para-methyl styrene, vinyl naphthalene, vinyl anthracene or vinyl carbazole. The product is suitable for use as a lubricating oil additive.ALSO:Lubricating oil comprise a lubricating oil together with from 0.03 per cent to 10 per cent by weight of a pour depressor prepared by the simultaneous polymerization and alkylation of a vinyl aromatic compound, particularly styrene, in the presence of a Friedel-Crafts catalyst (see Group IV(a)). Other pour depressors, viscosity index improvers, rust inhibitors, oiliness agents and oxidation inhibitors may be incorporated. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3318813-A |
| priorityDate | 1950-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.