http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2251549-C2
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-51 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-5393 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-51 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-526 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K15-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-145 |
| filingDate | 2000-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2005-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3b39d5bff0ce4c1ea1e91e0f1fd2069e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_786c8b8706f283d9100541a1c05b7e02 |
| publicationDate | 2005-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2251549-C2 |
| titleOfInvention | Method for production of stabilizers with low chloride content |
| abstract | FIELD: organic chemistry, in particular agents for stabilization of organic materials. n SUBSTANCE: invention relates to method for production of stabilizer mixture to prevent oxidative destruction, thermal destruction, or light-initiated destruction of organic materials. Claimed composition has low chloride content and comprises (mass %): a) tetrakis-biphenylene diphosphonite or isomers thereof 50-80; b) bis(2,4-di-tert-butylphenyl)-biphenylene monophosphonite or isomers thereof 5-25; c) tris(2,4-di-tert-butylphenyl) phosphite 5-25, wherein total content of a), b) and c) is not more than 100 mass %. Method is carried out by Friedel-Crafts reaction of biphenyl with phosphorus trichloride and aluminum trichloride; reaction of obtained mixture with 2,4-di-tert-butylphenol in presence of tertiary amine or aromatic amine and solvent, followed by separation of two formed layers. Method includes treatment of solvent layer with water, base and drying agent; separation of precipitate from solution containing stabilizer mixture; and solvent evaporation. n EFFECT: improved treatment method for production of stabilizers with desired chloride content and product, which is not cloudy and does not initiate cloudiness in synthetic polymers. n 10 cl, 10 ex |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2686829-C1 |
| priorityDate | 1999-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 87.