http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CH-582122-A5
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bba842fc4d37dfcaced1b55bc0c91c7c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-0091 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-1345 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-134 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-00 |
| filingDate | 1973-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1976-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CH-582122-A5 |
| titleOfInvention | Para-hydroxy-benzoic esters - contg. tert-alkyl groups for protecting polyethylenes against ultra violet light |
| abstract | p-Hydroxybenzoic acid esters of formula:- where R1 is C4-14 t-alkyl. R2 is H, alkyl, alkoxy, cycloalkyl, cycloalkylalkyl, aralkyl opt. substd in the aryl by 1-2 alkyl or halogen gps. or aryl opt. substd. by 1-2 alkyl gps. R3,R4 are H, alkyl, R5 is alkyl, cycloalkyl, cycloalkylalkyo, aralkyl, heterocyclic aromatic, or phenyl opt. substd. by 1-2 alkyl, or an alkoxy or a residue in the p-position of formula as above in the p-position to -COR5. Me is H or a divalent cation. Y is 0 or 1. Specifically (a) with y = 1, R1 t-butyl R t-butyl (o to hydroxy) R3 R4 t-butyl-(o-to hydroxy) Me is H or N1 and R5 either phenyl, p-chlorophenyl, p-t-butyphenyl, p-phenylphenyl and methyl, (b) with y = O, R1 R2 and Me as in (a) and R5 methyl. The cpds. are prepd, by esterification methods and are used for protecting org. cpds. against ultra-violet light, partic. polypropylene and polyethylene. |
| priorityDate | 1973-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.