http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0376785-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be055db3c1a09879df07379ba969e223 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-685 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D209-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D491-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-685 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-107 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K9-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-244 |
| filingDate | 1989-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a1d9779847d1631fbcf6c0b3022107d8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_26860ccb970a00dfc7dc7ef9352a8d17 |
| publicationDate | 1991-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0376785-A |
| titleOfInvention | Manufacture of photochromic material |
| abstract | PURPOSE: To easily obtain a halogenated spiropyran photochromic material formable by the Langmuir-Blodgett technique into thin film by introducing first a long-chain alkyl and then a halogen group in the manufacture of a halogenated spiropyran. n CONSTITUTION: A halogenating agent is directly reacted with a photochromic material of formula I to synthesize a photochromic material of formula II. In formulas I and II, R is alkyl, preferably a 6-32C hydrocarbon group; R 1 and R 2 are each ketoalkyl, alkoxy, nitro, halogen or alkanoyloxymethyl; Y is fluorine, chlorine, bromine or iodine, and 1 to 4 of them substitute at arbitrary positions of an indoline ring. As the halogenating agent, N-bromosuccinimide and N-chlorosuccinimide are preferably used. n COPYRIGHT: (C)1991,JPO&Japio |
| priorityDate | 1989-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.