http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2248045-A1
Outgoing Links
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|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8fc0668fd5cbfe23cea7d9bdd5de932a http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cf32b60391b469c41e86c353437f5751 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-026 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2371-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-28 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-286 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L71-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-043 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-007 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-003 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0006 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F299-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D171-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L71-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02C7-04 |
| filingDate | 1997-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b0e98cd96143f32aedfe0dc791f8a9b7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c96d98e4138c6bd6424dbfcd272a87a |
| publicationDate | 1997-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2248045-A1 |
| titleOfInvention | High water content porous polymer |
| abstract | The present invention relates to porous polymers comprising a perfluoropolyether unit, to a process for producing such porous polymers, in particular to a process for polymerising or copolymerising monomers incorporating perfluoropolyethers to form porous polymers, to articles made of or comprising porous polymers comprising a perfluoropolyether unit, such as membranes or ophthalmic devices, and to the use of porous polymers comprising perfluoropolyether units as articles, such as membranes or ophthalmic devices. The perfluoropolyether units are preferably of formula PFPE -OCH2CF2O(CF2CF2O)x(CF2O)y CF2CH2O- (PFPE) wherein the CF2CF2O and CF2O units may be randomly distributed or distributed as blocks throughout the chain and wherein x and y may be the same or different such that the molecular weight of the perfluorinated polyether is in the range of from 242 to 4,000. The porous polymer is polymerized from monomers comprising macromonomers having one or more perfluoropolyether units, and using poly(alkylene)glycols as porogens during polymerization, wherein polymerization starts from a co-continuous microemulsion and displays a discrete phase during or at the end of the polymerization, the discrete phase forming an interpenetrating network throughout the mixture, and wherein the water content of the polymer, when fully equilibrated with water, is above 5 weight percent. The process can comprise the steps of 1) dispersing a porogen in a continuous monomer component phase wherein said continuous monomer component phase comprises at least one monomer having at least one perfluoropolyether unit and wherein said porogen is an optionally substituted poly(alkylene)glycol; 2) thereafter polymerising the continuous monomer phase whereby more than 600 of the porogen is in the form of a discrete phase immediately after polymerization; and 3) removing the porogen from the porous polymer. |
| priorityDate | 1996-04-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.