| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7503f2fa81a73988d9219717e7c7aee1 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31598
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31551 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D175-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-685
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-44 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-685
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D5-29
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D175-04 |
| filingDate |
2001-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f3a1f6a8116ad4cc716daf2b4b505e8e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_825615ea7e70d62a866ca2e81a75bdd4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5034a433dd3a99d443088d57bea8a250
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1d4a06db623276565dfa30d914c1c563 |
| publicationDate |
2002-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1263902-A1 |
| titleOfInvention |
Photochromic polyurethane coating and articles having such a coating |
| abstract |
Described are photochromic polyurethane coatings having improved durability as demonstrated by reduced swelling upon exposure to alcoholic solvents in the Percent Swelling Test. The coatings are prepared using polycarbonate polyols alone or in combination with different polyols as the source of hydroxyl groups. Also described are articles having such coatings. The coatings exhibit a Fischer microhardness of from 50 to 150 Newtons per mm<2> and good photochromic properties. |
| priorityDate |
2000-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |