http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5283316-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d9433fd16deefc4cc024a433f244c806 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-0226 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-0273 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-02 |
| filingDate | 1992-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1994-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ab0d6a7d000b26d46a4240119b17ec22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_79ee6ea145cf7c0736a1d57a93daed7d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2faad82f87ade8aee09eb73d4e64200e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a00487cde51e14486025185325226d95 |
| publicationDate | 1994-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5283316-A |
| titleOfInvention | Polymers with high refractive index and low optical dispersion |
| abstract | The present invention provides a process for the production of polymers with an optical position in diagram where refraction index nD is plotted against optical dispension vD expedient for an optical use by metathetic counterion exchange, wherein, in a polymer of the general formula: (* CHEMICAL STRUCTURE *) (I) R1 and R2, which can be the same or different, are divalent organic radicals, R3 and R4, which can be the same or different, are monovalent organic radicals, n is a whole number greater than 2 and y is 0 or 1. R1, R2, R3, R4, y and n are so chosen that together they form a polymeric basic structure which promotes glass formation and prevents crystallisation, and X- is a halogen atom. The halogen ion is replaced by an equivalent of a mono- or polyvalent organic or inorganic counterion different from the halogen ion and suitable for the adjustment of the desired solid body properties. Because of their outstanding optical properties (high refractive index in conjunction with low optical dispersion), these polymers are very suitable for a great variety of uses in optics, for example for optical construction parts, such as Fresnel lenses and lightwave conductors, and as optical coatings. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6955806-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007025954-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003031644-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006002887-A1 |
| priorityDate | 1989-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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