http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RO-84012-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e75e897746809ebb5fdbf5a2baf1d54 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M137-10 |
| filingDate | 1982-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be9bc5cdf45435d6e022b8027dbb69a9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6f77998082e76db7bb576c0fea60407a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1d011213e2b908f59a0b87baedd87adc |
| publicationDate | 1984-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RO-84012-B1 |
| titleOfInvention | DERIVATIVES OF ZINC DIPHOSPHOSPHES AND PROCESS FOR PREPARING THEM |
| abstract | Zinc dithiophosphate derivatives useful as antioxidant additives for lubricating oils according to the invention are zinc 0,0-dialkyl-N-bis-methylene-O, O-diallylphenyldithiophosphate of the general formula I wherein R 1 and R 2 represent aliphatic, identical or different radicals with a linear or branched chain and contain a number of 3 to 12 carbon atoms and R3 represents identical or different alkyl radicals having a straight or branched aliphatic chain consisting of a number of 3 to 18 carbon atoms, these derivatives having a minimum content of 5.2 wt% zinc, at least 4.8 wt% phosphorus and at least 9.8 wt% sulfur. The process for preparing the derivatives according to the invention consists in that 24 parts by weight of an alcohol or mixture of alcohols having from 3 to 12 carbon atoms in the chain are reacted with 10 parts by weight of phosphorus pentasulfide, in the range of 40 ... 120 ° C for 4 ... 8h, and separately 47 parts by weight of alkylphenol having 3 to 18 carbon atoms in the aliphatic chain are reacted with 2 parts by weight formaldehyde and 3 parts by weight ammoniacal solution, for 2h, at 40 ... 80 ° C, after which the water is removed under vacuum, ..... |
| priorityDate | 1982-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.