http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2385728-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7503f2fa81a73988d9219717e7c7aee1 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-23 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-92 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-685 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D- http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B- http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-92 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-23 |
| filingDate | 2000-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d9ad64754792b3b7b376b7b67c3352b8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_127bba895c06090d4fe43eceb8154e07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e391ede08c851def1bc51494a8562e03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3308fefc7acb32f33e01c606879a0338 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_38eccf920d917cdfa18b65ee714e2b2d |
| publicationDate | 2001-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2385728-A1 |
| titleOfInvention | Novel photochromic naphthopyrans |
| abstract | Described are novel photochromic 2H-naphtho[1,2-b]pyran compounds essentially characterized by having two adjacent moderates to strong electron donor substituents at the 8 and 9 positions or a fused heterocyclic group formed by the substituents coming together, weak to moderate electron donors at the 2 position and a rating of at least 80 in the Relative .DELTA.OD at Saturation Test. The compounds also have certain substituents at the 5 position and optionally at the 6 position of the naphtho portion of the compound. These compounds may be represented by graphic formula (I). Also are described polymeric organic host materials that contain or that are coated with such compounds. Optically clear articles such as ophthalmic lenses or adjacent plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., certain other naphthopyrans, benzopyrans, and spiro (indoline) type compounds, are also described. |
| priorityDate | 1999-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.