http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S60219261-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_43000a5cfa837b51a2a690856b95ada2 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-145 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-327 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B11-28 |
| filingDate | 1984-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bc7b94262e4779b222a59d8eb1e7dd5a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c85e029cb9b1eecd91e41b2120db17c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7605150620bcdd9652ff2fbab0f91181 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d1a9c3bb278e377c52bdf67dc25182bf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fff00490ab0fa5bd2885fbe4432b5d25 |
| publicationDate | 1985-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S60219261-A |
| titleOfInvention | Fluoran compound and thermal recording paper obtained by using the same |
| abstract | NEW MATERIAL:Fluoran compounds of formula I , wherein R 1 , R 2 are each H, a 1W8C alkyl, cyclohexyl, tetrahydrofurfuryl, cyclohexylmethyl; R 3 is H, halogen, methyl, benzyl, alkoxyalkyl; X is H, halogen; R 4 , R 5 are each H, a 1W4C alkyl, at least one of R 4 , R 5 is always alkyl. n USE: Dye precursors which develop deep black when brought into contact with an acidic substance and are suitable for use in the production of thermal recording paper, electrothermal recording sheet and photochromic recording sheet. n PREPARATION: A diphenylamine derivative of formula II (wherein R 3 , X are as defined above, R 4 is H, acetyl, lower alkyl) is reacted with a benzophenone derivative of formula III (wherein R 1 , R 2 , R 4 , R 5 are as defined above) in the presence of sulfuric acid. The pH of the reaction mixture is adjusted to 8W10 in water with an aq. NaOH soln. The mixture is filtered. Toluene and an aq. NaOH soln. are mixed with the filter cake, and the toluene phase is recovered to obtain the compd. of formula I . n COPYRIGHT: (C)1985,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2014005422-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2014002292-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7704841-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0353979-A |
| priorityDate | 1984-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.