http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5235086-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_79751aeaa9923745648e5ae7d9c35782 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-145 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-145 |
| filingDate | 1991-09-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1993-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_38a683eaee036946b4d9ab518ea4d4df http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3c03d5899b1ffec409a14aebf511c7d5 |
| publicationDate | 1993-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5235086-A |
| titleOfInvention | Process for the preparation of tris(2,4-ditert-butylphenyl)phosphite |
| abstract | A process for the preparation of tris-(2,4-ditert-butylphenyl) phosphite from 2,4-ditert-butylphenol and phosphorus trichloride in the presence of catalysts, which comprises carrying out the reaction in an at least three-stage process in which the 2,4-ditert-butylphenol and 40-100% of the catalyst are combined in a preliminary stage and are brought together with the phosphorus trichloride in a first stage, these being allowed to react under normal pressure and at temperatures of 55 DEG to 70 DEG C. for a dwell time of 15 to 40 minutes, the reaction mixture is then reacted in a second stage under normal pressure and at temperatures of over 140 DEG C., remaining amounts of catalyst being added to the first and/or second reaction stage, the reaction mixture is then kept under reduced pressure at temperatures of at least 186 DEG C. in a third reaction stage, and the tris-(2,4-ditert-butylphenyl) phosphite is then isolated from the reaction mixture, the process being carried out in the absence of solvents. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5917076-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5919966-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0902032-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103739622-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5786497-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115651012-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004106815-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2243763-B2 |
| priorityDate | 1989-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 257.