| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7503f2fa81a73988d9219717e7c7aee1 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31507 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L75-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L69-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-0041
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-041 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L69-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L75-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04 |
| filingDate |
2011-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2015-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bcded7a9f3a85e28518e17532cdc648f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_727256bb22e97a496da58d9c65f65ec6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4133be9e9dbbdacbd8ff19c33ad86c1a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2f3c49fcb3e805c1f911014b653a842d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d4ce18651066c528a7b08972594b8ad9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a37a793092323b08df848315f7d6b3de |
| publicationDate |
2015-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2817146-C |
| titleOfInvention |
Curable photochromic compositions and optical articles prepared therefrom |
| abstract |
The present invention provides a curable, organic polymeric photochromic composition comprising: a photochromic amount of at least one photochromic material; a polymeric polyol having carbonate groups along its backbone and having a number average molecular weight greater than 5000 g/mole; and a curing agent having reactive functional groups capable of reacting with hydroxyl groups on the polymeric polyol. After curing and after the Photochromic Performance Test the composition demonstrates a T1/2 fade rate of less than 200 seconds. Also provided is a photochromic article comprising a rigid substrate and a photochromic organic polymeric coating applied to a surface of the substrate. The photochromic organic polymeric coating comprises the composition described above. |
| priorityDate |
2010-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |