http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H04117385-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_216a7faed04ec9497c9819cc03c04599 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D498-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K9-02 |
| filingDate | 1990-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_60dfe0ee704f0d17a7027b1ff42667de http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_58a8cf8b371221bacfcd04a1f6b9f382 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_76378c77e1effa94b2a398bbbb6ff106 |
| publicationDate | 1992-04-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H04117385-A |
| titleOfInvention | Photochromic compound |
| abstract | NEW MATERIAL:A compound of formula I [R 1 ,R 2 ,R 3 are alkyl, alkoxy, aralkyl, aryl; R 4 to R 7 are alkyl, H, alkoxy, aralkyl, aryl, halogen, amino, (di)alkylamino, OH, but at least one of R 4 to R 7 is 5-20C alkyl; R 8 is H, alkyl, alkoxy; R 9 to R 12 are H, alkyl, alkoxy, arakyl, aryl, halogen, nitro, amino, (di)alkylamino, sulfone, OH]. n EXAMPLE: A compound of formula II. n USE: A recording and memorizing material. n PREPARATION: 1-Octadecyl-3,3-dimethyl-5-dodecyl-2-methyleneindolenine obtained from 2,3,3-trimethyl-5-dodecylindolenine and p-dodecylphenylhydrazine hydrochloride obtained by the diazo reaction of p-dodecylaniline as a starting substance is dropwise added to a 4-nitro-2-nitrosophenol.chloroform solution, refluxed and cooled. n COPYRIGHT: (C)1992,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102993211-A |
| priorityDate | 1990-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.