http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2115943-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/B41M5-3275 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B11-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-333 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-327 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B11-00 |
| filingDate | 1983-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5d34d4184e71eecc8016db2c0a4ffbd0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_842c039a73dcd23a81b85270eb40df9b |
| publicationDate | 1983-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-2115943-A |
| titleOfInvention | Heat-sensitive recording sheets containing fluoran dyes |
| abstract | A heat-sensitive recording sheet comprises a support, e.g. of paper, bearing a heat-sensitive layer of an almost colorless electron-donating dye and an organic acid capable of forming color when heated in contact with the dye. The dye contains at least two fluoran compounds, and 20-90 wt. % of the dye is a fluoran compound represented by the general formula <IMAGE> wherein R1 and R2 are alkyl, cycloalkyl, aralkyl or aryl but are not both aryl and may together complete a hetero ring, X is halogen and R3 is aryl or alkoxy alkyl. Eight such compounds are named, wherein X is chloro and R1, R2 are ethyl or dibutyl. The organic acid is exemplified as an aromatic carboxylic acid or metal salt thereof or a substituted phenol. The sheet forms good color by scanning in a facsimile machine, and the image has good resistance to moisture and heat (e.g. 50 DEG C and 10% RH or 60 DEG C and 25% RH for 24 hours). <IMAGE> |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5149689-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5071480-A |
| priorityDate | 1982-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 63.