http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-H1668-H
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2a6a9431aa1fe5109ca95ad4e332231b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G12-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G12-00 |
| filingDate | 1996-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1997-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fddccc7f7aab7366c4299ef2d857d29a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c684c6a579bb4a01521c2adb7b73b5c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1aeeeeb59f550413e087559bb6880491 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_846f18b4f2820a6087f57a8fa2ce4450 |
| publicationDate | 1997-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-H1668-H |
| titleOfInvention | Polymeric perfluoroalkylether-linked quinoxalines |
| abstract | Perfluoroalkylether-linked quinoxalines having repeating units of the formula: ##STR1## wherein R f is selected from the group consisting of --OCF 2 CF 2 --, --OCF 2 CF 2 CF 2 --, --OCF 2 CF 2 CF 2 CF 2 --, --OCF 2 CF(CF 3 )-- and --OCF 2 CF 2 OCF 2 CF(CF 3 )--; wherein n has a value of 2 to 4, and m has a value of 1 to 20; and wherein R is a single bond, --O--, --S--, --C 6 H 4 --O--C 6 H 4 --, or --SO 2 --, are prepared by the steps of n (a) preparing a perfluoroalkylether diiodide of the formula I(CF 2 ) n (R f ) m (CF 2 ) n l; n (b) reacting the perfluoroalkylether diiodide with 4-iodobenzil to produce the tetraketone C 6 H 5 C(O)C(O)C 6 H 4 (CF 2 ) n (R f ) m (CF 2 ) n C 6 H 4 C(O)C(O)C 6 H 5 ; and n (c) reacting the resulting tetraketone with a tetraamine of the formula ##STR2## wherein R is a single bond, --O--, --S--, --C 6 H 4 O--C 6 H 4 --, or --SO 2 --. The perfluoroalkylether-linked quinoxalines can be end-capped with, for example, a low proportion of co-monomers having crosslinking sites such as acetylenic linkages to allow for crosslinking and chain extension on curing. |
| priorityDate | 1996-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 64.