http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1189655-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5635744f3e22ca8d710dd1f2707bee23 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06P3-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B17-10339 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06P3-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B17-10 |
| filingDate | 1982-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1985-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3dc1693d42e543abee2db3808aed8399 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7eb64816c591c7638f420b4a0ec4b09c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53820898637349a37a5f0fd02f765c50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ad8bbd4cb29469c1a02c2307c9addec6 |
| publicationDate | 1985-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1189655-A |
| titleOfInvention | Method for tinting a sheet of polyurethane |
| abstract | Abstract of the Disclosure A method of tinting a sheet of transparent polyurethane comprising a coloring operation followed by a fixation operation. The aforesaid coloring operation is carried out through immersion of the polyurethane into a bath maintained under continuous agitation and formed of a dispersion of one or several colorants in an aqueous solution containing a surfacant or wetting agent, while the aforesaid fixation operation is carried out through rinsing in boiling aqueous solution of sodium alkyl sulfonate of the type known under the mark "teepol".? The application to a double or composite sheet preformed to a thin laminate, that is to say, one layer of a thermo-plastic polyurethane and one other layer of a thermosetting polyurethane. In a particularly useful embodiment of the invention the tinted polyurethane serves as a selective filter having almost zero transmission in the so-called cutoff range of wavelengths lying between about 350-560 nm. Eyeglasses made from such lenses are useful for victims of aphakia and retinitis pigmentosa. |
| priorityDate | 1981-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.