http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4089839-A
Outgoing Links
Predicate | Object |
---|---|
assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2c2260fb34fa5de3bd270bee17aef91b |
classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D249-20 |
classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D249-20 |
filingDate | 1976-06-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate | 1978-05-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5c9df8cf304a6b4aad20ad9075384215 |
publicationDate | 1978-05-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | US-4089839-A |
titleOfInvention | 5-Chloro-2-(2'-hydroxy-5'-tert-octylphenyl)benzotriazole and polypropylene stabilized therewith |
abstract | Catalytic hydrogenation of o-nitrophenylazohydroxyaryls in an alkaline medium yields hydroxyarylbenzotriazoles; under mild conditions an N-oxide is formed. E.g., 6-tert-butyl-2-(5'-chloro-2'-nitrophenylazo)-p-cresol is hydrogenated to 5-chloro-2-(3'-tert-butyl-2'-hydroxy-5'-methylphenyl)benzotriazole, using platinum sulfide catalyst in the presence of sodium hydroxide: <IMAGE> +TR <IMAGE> IN THIS CASE A in the starting chemical is 5-chloro, n is 1, Ar is a phenyl nucleus, m is 2, one B is 6-tertbutyl and the other B is 4-methyl; in the product x is zero. Chemicals useful for various purposes, including the stabilization of polymeric materials (e.g., polypropylene, polyvinyl chloride) against light, may be made by the process. |
isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5675015-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5019614-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6608162-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-03078495-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4535104-A |
priorityDate | 1973-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 443.