http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2228961-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c379b0d1b49897f8d47533c391a78599 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S425-808 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C33-0055 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29D11-00057 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C37-0003 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C33-44 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29L11-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C33-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02C7-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C37-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C33-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C39-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29D11-00 |
| filingDate | 1998-02-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2007-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e43e73e9398d3c914dc9c1572aa08244 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3b5d647a6b4657d8b6dddb5ea638ce29 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_886ca58fedc88e133c4ba514c9728863 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1b7b8f6f72b11fd24f44942a84862af http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dd09f2ab437f0acab913b4e6bc93e142 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f0e0843bf1f074d8cce3a8bec144902 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d0433dfee0314827a0805d2024221361 |
| publicationDate | 2007-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2228961-C |
| titleOfInvention | Base curve mold designs to maintain hema ring/base curve adhesion |
| abstract | Designs for basecurves are disclosed which are designed to promote adhesion of an excess polymer HEMA ring to the basecurve during a demolding operation such that the excess polymer HEMA ring is removed along with the basecurve during the demolding operation. The basecurve mold designs promote and maintain adhesion of an excess polymer HEMA ring to the basecurve in a process for molding cast contact lenses in mold assemblies, each comprising a frontcurve and a spaced basecurve, and wherein a molded lens is formed therebetween. In one embodiment an annular area of the basecurve mold adjacent to the excess polymer HEMA ring is formed with laser machining marks therein, formed by laser machining a corresponding annular area in a master mold used to cast the basecurve molds. In a second embodiment the annular area of the basecurve mold is formed with electric discharge machine marks therein, formed by electric discharge machining a corresponding annular area in a master mold used to cast the basecurve molds. In further embodiments, the annular area of the basecurve mold can be formed with projecting teeth which project into the excess polymer HEMA ring, or with an annular step which contacts the excess polymer HEMA ring. Moreover, the annular step can include a plurality of projecting teeth therearound, or can define a spoked design or an edgecut design. |
| priorityDate | 1997-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID13360 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID425856400 |
Total number of triples: 30.