http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2090575-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e12941b8e3106f8dd032fe7226db9af3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_91236ce8a360821e3fba9e17c64ba663 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-26 |
| filingDate | 1994-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1997-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_19f22bbfdfc4b83648377dbdb1f377ea http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f73e8f967d4fa9e1d7470bb7d3eb22d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_470d0fd5c134c7aba59f20644c33aa4d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_851ee762f4ce58cc434af15cbdfd2fd9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_38b13a6813874904fa40f065c785989f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f94537db301ba7471aeefc16abcb3871 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d771f0359676c511723019a31e69ead3 |
| publicationDate | 1997-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2090575-C1 |
| titleOfInvention | Copolymers of perfluoroalkylene oxides comprising functional groups as base for sealers and protective coatings and method for their production |
| abstract | FIELD: production of thermal resistant, cold-resistant and aggressive resistant sealers and protective coatings. SUBSTANCE: copolymers of perfluoroalkylene oxides comprising functional groups have common formula given in specification, their average molecular weight being 7000-14000. Copolymers are prepared by copolymerization of hexafluoropropylene and perfluoroalkoxide comprising functional group. The process is carried out in the presence of initiator, it takes place at molar ratio of comonomers 3.5:1-35:1, respectively, and is followed by treatment reaction mass to isolate product. Cesium perfluoroalkoxide and oligomer of oxide of hexafluropropylene with tetraglyme is used as mentioned above initiator, its quantity is 1.3-1.7 mol % of mass of hexafluropropylene oxide and is used as solution in perfluorotoluene. To accelerate the process of copolymerization acetone is used, its quantity is 15-25 % of mass if initiator. It is preferable to begin copolymerization process with feeding of perfluroallyl fluorosulfate and to complete it with feeding of hexafluoropropylene, and at the time interval it is preferable to carry out simultaneous feeding of comonomers. Copolymers are hardened at room temperature and may be used without solvents as base for production of thermal resistant, cold-resistant and aggressive resistant sealers and protective coatings. EFFECT: improved quality. 5 cl |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8557952-B2 |
| priorityDate | 1994-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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