http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0015481-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2311-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-025 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-145 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F6-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08C1-075 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D127-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F6-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L27-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F6-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L27-18 |
| filingDate | 1980-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e154d5cd9a55053867238aecff6547b1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3faafc475a2d6b852e02023a37b9f56f |
| publicationDate | 1980-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0015481-A1 |
| titleOfInvention | Concentrated dispersions of fluorinated polymers and process for their manufacture |
| abstract | Aqueous, colloidal dispersions of fluoropolymers can be concentrated to high solids contents after the addition of a stabilizing emulsifier by ultrafiltration (part A) over conventional semipermeable membranes, if pumps are used for the conveyance which keep the dispersion in contact-free manner with parts which cause frictional forces. A significant proportion of the stabilizing emulsifier added and high proportions of the fluorine-containing emulsifier originally contained in the fluoropolymer dispersion from the emulsion polymerization can be removed via the aqueous permeate. The fluorine-containing emulsifier can be recovered by a downstream basic anion exchanger (part B), in the filtrate flowing out of the anion exchanger the stabilizing emulsifier contained therein can be concentrated by reverse osmosis (part C) and possibly returned to the ultrafiltration process. Fluoropolymer dispersions can be obtained. which are characterized in addition to a high solids content by particularly low levels of fluorine-containing emulsifier and stabilizing emulsifier. The method is applicable to all known aqueous, colloidal dispersions of fluorinated homo- and copolymers. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5685990-A |
| priorityDate | 1979-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 70.