http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4156682-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B11-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M5-3275 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-327 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B11-24 |
| filingDate | 1976-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1979-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37feb0cd9e1055ede23bafaddcc12937 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_89d6d71e5698838eb93528207956e26f |
| publicationDate | 1979-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4156682-A |
| titleOfInvention | Fluoran compounds and recording sheet containing them |
| abstract | A fluoran compound represented by the formula, <IMAGE> WHEREIN R1, R2, R3 and R4 are each hydrogen, substituted or unsubstituted lower alkyl, lower alkenyl, or lower alkynyl, <IMAGE> <IMAGE> <IMAGE> <IMAGE> GROUP (WHEREIN X is hydrogen, halogen, lower alkyl, lower alkoxy, di-lower alkylamino or -COORa group in which Ra is lower alkyl, and l is an integer of 1 to 4), or R1 and R2, or R3 and R4, taken together, may form a heterocyclic ring; Y is the same atom or group as X but independent of X; D is a benzene or naphthalene nucleus; Z is hydrogen or halogen; and m and n are each an integer of 1 to 4, is useful as a coloring material for record material systems such as pressure-sensitive copying paper or heat-sensitive copying paper, wherein colored images are formed by an electron donor-accepter color-forming reaction between a coloring material and an acidic material. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4775656-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4603202-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5250708-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5331097-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3221651-A1 |
| priorityDate | 1973-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 416.