http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1518740-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e9e11ac16e9c5716e1f3e12ecaeb06ff |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31507 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31667 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31663 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B05D7-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29D11-00865 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-105 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-111 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B05D7-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29D11-00 |
| filingDate | 1976-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1978-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1518740-A |
| titleOfInvention | Production of abrasion-resistant optical element |
| abstract | 1518740 Coated optical elements AMERICAN OPTICAL CORP 10 Dec 1976 [29 Dec 1975] 51742/76 Heading B2E Transparent optical elements, e.g. lenses, eyeshields or windows, of organic polymers, e.g. cellulose acetate, cellulose acetate butyrate or propionate, homo- and co-polymers of styrene, methyl methacrylate and diethylene glycol bis allyl carbonate, or a polycarbonate such as bisphenol, A polycarbonate are treated to promote adhesion to a coating containing a polysilicic acid ester of a C 1 -C 12 alcohol with up to 4 silicic acid ester groups per Si atom, at least one polymer selected from polyvinyl alcohol or partially hydrolysed polyvinyl butyral, polyvinyl acetate or polyvinyl formal and a formaldehyde or zirconyl nitrate cross linking agent. The coating is then dried and cured. Many adhesion promoting treatments are specified. |
| priorityDate | 1975-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.