| Predicate |
Object |
| assignee |
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_2a09e4c17683936e8454055419254bab
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e5fa05849a0ccb73381dbeccd731f7d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9154f662f16e503b54e4da7776125eb1 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00189
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/B01J2219-00779
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00768
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F216-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F216-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F218-08 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-1806
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/C08F14-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-0066
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F214-265 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F216-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-01
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/C08F214-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D127-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F218-08 |
| filingDate |
2012-08-02^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_174a7cd48f5e792b207afb1fbdfe773d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1a79eaa6a73903e92748fc48ee0cbe7d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_592896d3a97934210181635067c4d185
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e2fa85ae4e4596c9a4022481569fbac |
| publicationDate |
2013-06-27^^<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^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |