http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S61186924-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bb4ee28d43b5e8d4a3c5141fa9bcfeb0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F20-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02C7-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-043 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02C7-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F20-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F20-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F20-00 |
| filingDate | 1985-02-15^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_629de8e05ed51025a045a09dfde57019 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1aa129ed1aa88012129beb37e0043d40 |
| publicationDate | 1986-08-20^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S61186924-A |
| titleOfInvention | Contact lens material |
| abstract | PURPOSE:To obtain the titled material having improved oxygen permeability an transparency, and lessening a generation of a strain by constituting the titled material from a polymer having a specific fluoroalkyl group. CONSTITUTION:The contact lens material is composed of the polymer having a structural unit shown by the formula. A polymerization method can be used the well-known method of polymerizing fluorine-contg. methacrylates. A vinyl monomer contg. a hydrogen atom or a methyl group at alpha-position has a small polymerization rate, and merely produces a grease-like polymer having a low mol.wt. While the vinyl monomer contg. a fluorine atom at alpha-position has a large polymerization rate, and produces a tough polymer having a high mol.wt. and an excellent mechanical strength. As the titled material has a higher glass transition temp. than that of a bodily temp., when the titled lens is applied to an eye, the titled lens having good hardness, oxygen permeability and anti- contamination properties is obtd. The polymerization of the monomer is carried out in the absence of the catalyst, thereby obtaining the titled lens having the good transparency. |
| priorityDate | 1985-02-15^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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