http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S59188491-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03d0f52bb4069f8a19d70dcfb697c67a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M5-1455 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M5-3275 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M5-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B11-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-327 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-145 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B11-24 |
| filingDate | 1983-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0009f97465c31153ed01c9546ce99365 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3b4e36cd8db18de1dbe3dc7a249a8852 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08703a65e84141d0765d9249b05f19fc |
| publicationDate | 1984-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S59188491-A |
| titleOfInvention | Fluoran derivative and recording material using it |
| abstract | PURPOSE: To enhance stability in air of a dye precursor for black color forming recording and fastness of a dye formed therefrom against light, moisture or the like, by using a fluoran derivative having an arylamino group at 2-position, a long chain alkyl group at 3-position and an amine residue at 6-position. n CONSTITUTION: A fluoran derivative having an arylamino group at 2-position of the fluoran ring, a long-chain alkyl group at 3-position and an amine residue at 6-position. A specified fluoran derivative having a long-chain alkyl group at 3- position of the fluoran ring is markedly water-insoluble and has a low melting point. Further, when an arylamino group, particularly, an anilino group, or a p- methyl or p-chloroanilino group is introduced to the 2-position of the fluoran ring, the fluoran derivative forms a color of pure black hue through interaction with a color developer having a phenolic hydroxyl group. Such a fluoran derivative is a colorless or light-colored crystal, is markedly hydrophobic, is highly soluble in organic solvents, and rapidly forms a black color upon contact with an electron-receptive substance. The developed dye is remarkably stable, and is excellent in fastness against discoloration or decoloration when being exposed to light, heat or moisture for a long period of time. n COPYRIGHT: (C)1984,JPO&Japio |
| priorityDate | 1983-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.