http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S57205449-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/C07D493-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-145 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-10 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 |
| filingDate | 1981-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08703a65e84141d0765d9249b05f19fc |
| publicationDate | 1982-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S57205449-A |
| titleOfInvention | Fluoran derivative and recording material empolying same |
| abstract | PURPOSE: To provid a recording material having a excellent properties useful for pressure-sensitive recording sheets and photosensitive recording sheets, by using a novel fluoran derivative as a coloring matter precursor. n CONSTITUTION: A recording material contains a fluoran derivative having an amino group at position 2 and a diarylamino group at position 6 of a fluoran skeleton, pref. a compd. of the formula wherein Ar, Ar' are each aryl or a heterocyclic ring residue or together may form a heterocyclic ring; R 1 , R 2 are each H, alkyl, cycloalkyl, aralkyl, aryl, a heterocyclic ring residue, or together may form a heterocyclic ring; R 3 is H, alkyl, alkoxy, halogen; R 4 is H, alkyl, alkoxy, halogen. This derivative is a novel compd. and rapidly dyes a recording sheet greenish black to black when in contact with an electron accepting material such as activated clay. Developed coloring matter is remarkably stable as compared with conventional ones, and useful for the long-term preservation of recording. n COPYRIGHT: (C)1982,JPO&Japio |
| priorityDate | 1981-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.