http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0478261-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_385752f237551ca1b257f160a0f2434b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-043 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F230-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F230-08 |
| filingDate | 1991-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32ca9555728272dc4a0aa1ce81f64120 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c287fd03b36385f092c3f879722f0d0a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5841f5447cda28c58a1dcb40688cbeb3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5bf4adefd7ac93ee2fcda1eddb1f5151 |
| publicationDate | 1992-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0478261-A2 |
| titleOfInvention | Process for producing oxygen-permeable polymer |
| abstract | A process for producing an oxygen-permeable polymer, which comprises polymerizingn (1) at least one first monomer selected from the group consisting of alkenes of 6-10 carbon atoms having one double bond and one side chain methyl group, and (2) at least one second monomer selected from the group consisting of compounds represented by general formula (I) :n wherein A represents an unsaturated polymerizable group ; X represents a bivalent hydrocarbon group of 1-10 carbon atoms ; R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , which may be the same or different, represent fluorine-substituted or unsubstituted alkyl groups, phenyl groups, vinyl groups, hydrogen atoms or Q groups represented by the formula :n wherein Y 1 , Y 2 and Y 3 , which may be the same or different, represent fluorine-substituted or unsubstituted alkyl groups, phenyl groups, vinyl groups, or hydrogen atoms, with the proviso that R 1 and R 2 are not simultaneously hydrogen atoms, R 3 and R 4 are not simultaneously hydrogen atoms, R 5 and R 6 are not simultaneously hydrogen atoms, and at least two of Y 1 , y2 and Y 3 are other than hydrogen ; Z represents a group represented by the formula -X-B (X is as defined above, and B represents an unsaturated polymerizable group or a hydrogen atom) or a fluoroalkyl group ; k is a number of 0-100 ; and when pluraln groups exist, these groups may be the same or different, and compounds represented by general formula (II) :n wherein R 7 represents a hydrogen atom, a fluorine atom or a fluorine-substituted or unsubstituted alkyl group; R 8 represents a hydrogen atom, an alkyl group of 1-20 carbon atoms, or a fluoroalkyl group of 1-20 carbon atoms bonded to CO through a bivalent hydrocarbon group of 1-4 carbon atoms, with a proviso that when R 8 is a hydrogen atom, R 7 must be a fluorine-substituted or unsubstituted alkyl group, or polymerizing a monomer represented by general formula (III) :n wherein R 9 represents a bivalent hydrocarbon group of 1-4 carbon atoms ; R 10 represents an alkyl group of 1-20 carbon atoms which may be substituted by at least one member selected from the group consisting of substituents and fluorine atom ; R 11 represents an alkyl group of 1-20 carbon atoms which may be substituted by at least one member selected from the group consisting of substituents and fluorine atom, or said monomer and other alkenyl monomers. The polymer produced by the process has very high oxygen permeability, is resistant to adhesion and adsorption of staining substances present in lacrima or intraocular solution, and has excellent machinability and grindability. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-1070494-C http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1700871-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8246896-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9720851-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-711848-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2239285-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5714557-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2010115672-A1 |
| priorityDate | 1990-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 562.