http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S59176353-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be92719b856db86c092cc233e9512ca2 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-327 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B11-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B11-00 |
| filingDate | 1983-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_df206a5095e0ea92040208b1c140c670 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_df7abc07020eba277ac259512d970fd4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e76960ac9495d51bae1107d16bd3f8f1 |
| publicationDate | 1984-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S59176353-A |
| titleOfInvention | Novel fluoran derivative and thermal recording material |
| abstract | NEW MATERIAL:Fluoran derivatives of formula I wherein R 1 , R 2 are each a 1W 4C lower alkyl. n EXAMPLE: 2-(4-Acetylphenyl)amino-6-N-methyl-N-4'-n-butylphenylaminofluoran. n USE: They are used as a heat-sensitive color coupling component for leuco thermal recording materials and gives thermal recording materials which exhibits little ground color formation, has a high color density and a low initial color forming temp. and is excellent in initial rise of color formation. n PREPARATION: A diphenylamine compd. of formula II (wherein R is H, lower alkyl) is reacted with a benzophenone compd. in the presence of a condensing agent such as conc. sulfuric acid. The reaction product is separated and purified by filtration, extraction, recrystallization, etc. to obtain the fluoran derivative of formula I . n COPYRIGHT: (C)1984,JPO&Japio |
| priorityDate | 1983-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.