http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2061274-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1e70c0aeade92d7571d955d3b90ea06e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-22 |
| filingDate | 1992-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_783e413cccc474287417f117910201af http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5e3d48c8a81016b74103d0cd18b8adb3 |
| publicationDate | 1992-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2061274-A1 |
| titleOfInvention | Compounds, monomers, and polymers based on perfluoroalkyl and perfluoroalkyl-aryl dioxapentacene |
| abstract | TITLE COMPOUNDS, MONOMERS, AND POLYMERS BASED ON PERFLUOROALKYL AND PERFLUOROALKYL-ARYL DIOXAPENTACENE ABSTRACT OF THE DISCLOSURE Rigid fluorine-containing compounds, monomers, and polymers based on pentacyclic core systems, such as 12H,14H-5,7-dioxapentacene with perfluoroalkyl and/or aryl groups in the 12, 14 positions, and 5H,12H-7,14-dioxapentacene, with perfluoroalkyl and/or aryl groups in the 5,12 positions. These monomers have utility in the preparation of advanced high-performance polymers, particularly polyimides. The rigid pentacyclic core decreases the coefficient of thermal expansion of the polymers, while the fluorinated substituents improve the dielectric constant and water absorption properties. Each monomer unit contains within its pentacyclic core two-O-bridges, and two -CRRf bridges (where R is aryl, substituted aryl or perfluoroalkyl, and Rf is perfluoroalkyl). |
| priorityDate | 1991-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 171.