Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9154f662f16e503b54e4da7776125eb1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2a09e4c17683936e8454055419254bab http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4cdd246bafdb8cfc370a4e91cccc41f2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a250979220cdeb0246a2e848965acf7b http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e5fa05849a0ccb73381dbeccd731f7d |
classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00768 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00162 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F216-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00189 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F216-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F218-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00779 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F14-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01F27-1161 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-1806 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-0066 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F214-265 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01F27-906 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F216-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F216-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F218-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F214-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D127-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-18 |
filingDate |
2012-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1a79eaa6a73903e92748fc48ee0cbe7d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e2fa85ae4e4596c9a4022481569fbac http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_592896d3a97934210181635067c4d185 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_174a7cd48f5e792b207afb1fbdfe773d |
publicationDate |
2013-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
WO-2013091381-A1 |
titleOfInvention |
Preparation method for polytetrafluoroethylene resin with high fluorine content |
abstract |
Provided is a preparation method for polytetrafluoroethylene resin with high fluorine content. The method comprises: adding a solvent, liquid nonfluorine comonomers and an initiator to a reaction kettle; evacuating the oxygen from the reacting system under vacuum condition; controlling the polymerization reaction temperature in a range of 60 to 75℃; feeding the tetrafluoroethylene monomer in gas phase; adding the additional tetrafluoroethylene monomer and the initiator continuously or intermittently during the polymerization reaction with a reaction time of 17 to 21 hours. The reaction kettle for conducting said preparation method is also provided. Medium viscosity media is suitable for the present invention, and the reaction kettle equipped with a special cylinder stirrer is utilized under limited stirring speed for allowing tetrafluoroethylene type normal temperature cured resin with high fluorine content to be prepared well. |
isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112058200-A |
priorityDate |
2011-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |