http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S6283182-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/B41M5-327 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M5-145 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-327 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-145 |
| filingDate | 1985-10-08^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_858af6239d0d413708e0b610652a5171 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08703a65e84141d0765d9249b05f19fc |
| publicationDate | 1987-04-16^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S6283182-A |
| titleOfInvention | Recording material |
| abstract | PURPOSE:To enhance a color forming property, raw preservability and the stability of a developed color image, in a recording material using an electron donating leuco dye and an electron acceptive compound, by using p- diarylaminophenylindolylphthalide derivative as the leuco dye. CONSTITUTION:A phthalide derivative represented by formula (I) (wherein Ar and Ar' are an aryl group, R1 and R2 are an alkyl group or an aryl group, X is a hydrogen atom, an alkyl group, an alkoxy group, an aryloxy group or a halogen atom and Y and Z are a hydrogen atom, an alkyl group or an alkoxy group) is used as an electron donating leuco dye. This electron donating leuco dye is a colorless or light-colored crystal and also has high solubility to an org. solvent and rapidly develops a blue color upon contact with an electron acceptive substance. The developed color is extremely stable and advantageous from the aspect of the long-term preservation of recording. |
| priorityDate | 1985-10-08^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID458392451 |
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