http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103755857-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F216-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F214-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F214-22 |
| filingDate | 2013-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103755857-B |
| titleOfInvention | Low-temperature resistant fluorubber, and preparation method thereof |
| abstract | The invention relates to a low-temperature resistant fluorubber, and a preparation method thereof, and belongs to the field of fluorine chemical industry and high molecular material technology. The preparation method comprise following steps: 1) alcohols containing fluorine, such as tetrafluoro-1-Propanol, octafluoropentyl alcohol, and H,1H,7H-dodecafluoro-1-heptanol are taken as initial fluorine-containing materials, and are subjected to condensation with pentafluoro bromopropylene in the presence of a phase transfer catalyst so as to obtain a fluorine-containing ether containing carbon-carbon double bonds; 2) a monomer mixture is prepared from 1,1-difluoroethylene, hexafluoropropylene, and fluorine-containing alkyl pentafluoropropene ether according to a certain molar ratio, and is stored for further treatment; and 3) the monomer mixture is delivered into a polymerization vessel, and is subjected to emulsion polymerization in the presence of an emulsifier, an initiator, and a chain transferring agent, and latex obtained via polymerization is subjected to coacervation, washing, and drying, and is made into low-temperature resistant fluorubber sheets using a open mill. The preparation method is capable of improving low-temperature resistance of fluorubber effectively, so as to satisfy requirements on low-temperature sealing; the raw materials are easily available; preparation processes are easy to realize; and the preparation method is beneficial for popularization and application. |
| priorityDate | 2013-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 87.