| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_174384bea2b0804155baead27bcb3b3c |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2327-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2327-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2327-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L71-02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L27-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F6-16 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L71-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L27-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F6-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F6-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-16 |
| filingDate |
2007-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_00c07ffde432721bc12d2e5449038922
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c090d47f35c0312a9b5ae7d44a2306e5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_65fe6f10523982c2552e3bb6b4041f9a |
| publicationDate |
2008-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-2007819-A1 |
| titleOfInvention |
Fluoropolymer dispersion purification |
| abstract |
The invention pertain to a process for purifying a fluoropolymer dispersion, said process comprising: (i) providing an aqueous dispersion (D) of at least one fluoropolymer [polymer (F)] comprising at least one fluorinated surfactant [surfactant (FS)], having a solids content (SC) of 15 % by weight or more; (ii) adding to said aqueous dispersion (D) at least one non-ionic non-fluorinated surfactant [surfactant (NS)]; (iii) adjusting said solid content (SC) to less than10 % by weight, to obtain a diluted aqueous dispersion (dD); (iv) contacting said diluted aqueous dispersion (dD) with at least one adsorbing material, so as to obtain an aqueous dispersion of polymer (F) having a content of the fluorinated surfactant (FS) of less than 1 ppm based on the total weight of solids. Still an object of the invention is an aqueous fluoropolymer dispersion comprising less than 1 ppm of fluorinated surfactant. |
| priorityDate |
2006-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |