http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0270760-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03d0f52bb4069f8a19d70dcfb697c67a |
| classificationIPCInventive | 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/B41M5-145 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-30 |
| filingDate | 1988-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3b4e36cd8db18de1dbe3dc7a249a8852 |
| publicationDate | 1990-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0270760-A |
| titleOfInvention | Leuco dye compound |
| abstract | PURPOSE: To obtain a leuco dye compound having good resistance and showing a black hue suitable for use in heat-sensitive paper, comprising a fluoran compound not having any substituent in the 3-position. n CONSTITUTION: This leuco dye compound is 2-(2,6-dimethylanilino)-6- dialkylaminofluoran. This compound can be easily obtained by, for example, condensing 2-methyl-4-ethoxy-2',6'-dimethyldiphenylamine with 2-hydroxy-4- dialkylaminobenzoylbenzoic acid by using an acid catalyst such as conc. sulfuric acid, fuming sulfuric acid or phosphoric acid. It is particularly important in order to improve the hue and resistance to, e.g., light, chemicals and NO x that the compound have two methyl groups in the 2- and 3-positions of the anilino group. n COPYRIGHT: (C)1990,JPO&Japio |
| priorityDate | 1988-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.