http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S61291656-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_43000a5cfa837b51a2a690856b95ada2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M5-1455 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-145 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B11-00 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/C07D493-10 |
| filingDate | 1985-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_050bfc4283f474d947ef783be494022e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9765084bfc58bb34cc9a58e480f8ed18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d1a9c3bb278e377c52bdf67dc25182bf |
| publicationDate | 1986-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S61291656-A |
| titleOfInvention | Fluoran compound and recording material |
| abstract | NEW MATERIAL:A compound shown by the formula I [R1 and R2 are 1-8C alkyl, 3-7C cycloalkyl, (substituted) phenyl, (substituted) benzyl, 2-6C alkoxyalkyl or H; R3 and R4 are H, C1 or 1-4C alkyl]. EXAMPLE:2-N, N-Di (beta-phenoxyethyl) amino-6-diethylaminofluoran. USE:A colorant for pressure-sensitive copying paper capable of forming a colored image having improved light resistance. PREPARATION:An aniline derivative shown by the formula II (R is H, 1-4C alkyl or acetyl) is reacted with a benzophenone derivative shown by the formula III in the presence of conc. sulfuric acid at 0-80 deg.C for several hours. After the reaction is over, the reaction mixture is poured into water, adjusted with NaOH to 8-10 pH and precipitate is collected by filtration. Toluene and an aqueous solution of NaOH is added to the cake, which is treated under reflux and a compound shown by the formula I is obtained from the toluene layer. |
| priorityDate | 1985-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.