| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e95a0aaae0fd27e25d9484c59ebcadd9 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-78 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-78 |
| filingDate |
2006-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62548c256f52618aca65e0014a411da5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d25b1f3b891e6ccead604adee9bd5fc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_98c8d49903ab97df48d6f1e580990c4a |
| publicationDate |
2007-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2628501-A1 |
| titleOfInvention |
Photochromic spirodihydrophenanthropyrans |
| abstract |
The present invention relates to specific photochromic spirodihydrophenanthropyrans and to their use in plastics of all kinds, particularly for ophthalmic purposes. The compounds of the invention are photochromic pyran compounds derived from 9,10-dihydrophenanthrene, at least one of the two carbon atoms in position 9 or 10 belonging to a further ring system and thus forming a spiro linkage point. |
| priorityDate |
2005-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |