http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2015158978-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e5eba8c5d32c8157ba6334829f40f4e0 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0091 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2210-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G71-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4825 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4829 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/G02B1-043 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G71-04 |
| filingDate | 2015-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9a983055af796d05308347b1bbaa992e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3dada6b7821c05b89b81a9821866db9d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e1058b4d6cd284b333ae28c7d23473a5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6bb0c0d6115da9dd52eb32807154cd57 |
| publicationDate | 2015-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2015158978-A1 |
| titleOfInvention | Polymers for contact lenses |
| abstract | The present invention relates to a polyurethane polymer composition comprising polyethyleneglycol dialkyl ether. There is also provided 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 mixture ofn a. at least one polyethylene glycol or at least one polyol of formula I, n nn n n n n n n n n n wherein at least three of X 1 , X 2 , X 3 , X 4 and X 5 are each independently an OH-terminated group, and the remainder of X 1 , X 2 , X 3 , X 4 and X 5 are each independently H or absent, and Z is a central linking unit,n a. at least one di- or poly-isocyanate, b. optionally at least one OH-terminated chain extender, and c. at least one polyethyleneglycol dialkyl ether; ii. dispensing the reaction mixture formed in step i) into a mold; iii. allowing the reaction mixture to react and cure; iv. removing the molded article from the mold; and v. hydrating the molded article. |
| priorityDate | 2009-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 250.