http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S62121769-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d5d04736b0b882a4f5a1e0e0e4cd8cbb |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B11-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-145 |
| filingDate | 1985-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b2fd9aaa76f755ceed92d6bb4519ab2c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bdd1bfe9c3acd68bd2d16c7fb0b29fad http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c9b979a246564395abd99614a08b73dd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c7ea9263fc0e1095083b50f09a10f234 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dfc03495bb4167cf65ee20e807f73133 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a68c5b0f35bf4324ed0bdb9da973924 |
| publicationDate | 1987-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S62121769-A |
| titleOfInvention | Fluoran derivative, production thereof and recording material containing the same |
| abstract | NEW MATERIAL:Fluoran derivatives of formula I (wherein R is CH 3 , C 2 H 5 ). n EXAMPLE: 3-(N-methyl-N-cyclohexylamino)-6-methyl-7-anilinofluoran derivative of formula II. n USE: Fluoran derivatives are heat-sensitive color forming components useful as a color forming component for thermal recording materials having excellent fastness to plasticizers, oils, org. solvents, etc. n PREPARATION: 2mol of a compd. of formula III is reacted with 1mol of a ketone of formula IV (wherein R is as defined above) in the presence of a condensing agent such as sulfuric acid, etc. and a catalyst such as FeCl 3 , etc. at 30W80°C in the presence or absence of a polar solvent such as acetonitrile for 5W60hr. The reaction product is introduced into ice/water and neutralized. The resulting precipitate is recovered by filtration, dissolved in benzene, washed with an aq. soln. of 2% NaOH, concentrated and recrystallized from an org. solvent such as toluene, etc. to obtain a fluoran derivative in a high purity. n COPYRIGHT: (C)1987,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5256618-A |
| priorityDate | 1985-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.