| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e5eba8c5d32c8157ba6334829f40f4e0 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0091 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-6674
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4833
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-61
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-043 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-61 |
| filingDate |
2010-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e1058b4d6cd284b333ae28c7d23473a5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3dada6b7821c05b89b81a9821866db9d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9a983055af796d05308347b1bbaa992e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6bb0c0d6115da9dd52eb32807154cd57 |
| publicationDate |
2015-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-2894179-A1 |
| titleOfInvention |
Polymers for contact lenses |
| abstract |
The present invention relates to a polyurethane prepared from a mixture comprising: n(a) at least one polyethylene glycol; n(b) at least one di-isocyanate; n(c) at least one polydialkyl siloxane diol; and n(d) at least one diol of formula In n nwherein n is an integer from 1 to 25; nwherein the polyethylene glycol, di-isocyanate, polydialkyl siloxane diol and diol are reacted under substantially anhydrous conditions. n Further aspects of the invention relate to a process for preparing a polyurethane. n The invention also relates to a process for preparing a polyurethane xerogel in the form of a molded article, said process comprising the steps of: n(i) preparing a reaction mixture comprising at least one polyethylene glycol, nat least one di-isocyanate, at least one polydialkyl siloxane diol and at least one diol of formula I as described above; n(ii) reacting the reaction mixture formed in step (i) under substantially anhydrous conditions to form a polyurethane xerogel; and n(iii) injection molding the polyurethane xerogel to form a molded article. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109262955-A |
| priorityDate |
2009-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |