CA2396630A1 - Process for working up aqueous dispersions of fluoropolymers - Google Patents
Process for working up aqueous dispersions of fluoropolymers Download PDFInfo
- Publication number
- CA2396630A1 CA2396630A1 CA002396630A CA2396630A CA2396630A1 CA 2396630 A1 CA2396630 A1 CA 2396630A1 CA 002396630 A CA002396630 A CA 002396630A CA 2396630 A CA2396630 A CA 2396630A CA 2396630 A1 CA2396630 A1 CA 2396630A1
- Authority
- CA
- Canada
- Prior art keywords
- dispersion
- gas
- pressure
- fluoropolymers
- aqueous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000006185 dispersion Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 24
- 229920002313 fluoropolymer Polymers 0.000 title claims abstract description 11
- 239000004811 fluoropolymer Substances 0.000 title claims abstract description 10
- 229920001973 fluoroelastomer Polymers 0.000 claims abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 230000015271 coagulation Effects 0.000 claims description 6
- 238000005345 coagulation Methods 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 5
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 5
- 150000002500 ions Chemical class 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 239000003570 air Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000001112 coagulating effect Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 description 10
- 229920000642 polymer Polymers 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000004090 dissolution Methods 0.000 description 4
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 4
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical group FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 3
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- AYCANDRGVPTASA-UHFFFAOYSA-N 1-bromo-1,2,2-trifluoroethene Chemical group FC(F)=C(F)Br AYCANDRGVPTASA-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 238000007720 emulsion polymerization reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- DAVCAHWKKDIRLY-UHFFFAOYSA-N 1-ethenoxy-1,1,2,2,3,3,3-heptafluoropropane Chemical group FC(F)(F)C(F)(F)C(F)(F)OC=C DAVCAHWKKDIRLY-UHFFFAOYSA-N 0.000 description 1
- 229920006169 Perfluoroelastomer Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- -1 hydrogen ions Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- CSJWOWRPMBXQLD-UHFFFAOYSA-N perfluoromethylvinylether group Chemical group FC(=C(C(F)(F)F)F)OC(=C(F)C(F)(F)F)F CSJWOWRPMBXQLD-UHFFFAOYSA-N 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/14—Treatment of polymer emulsions
- C08F6/22—Coagulation
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10004229.5 | 2000-02-01 | ||
| DE2000104229 DE10004229A1 (de) | 2000-02-01 | 2000-02-01 | Verfahren zur Aufarbeitung wäßriger Dispersionen von Fluorpolymeren |
| PCT/US2001/003152 WO2001057096A1 (en) | 2000-02-01 | 2001-01-31 | Process for working up aqueous dispersions of fluoropolymers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2396630A1 true CA2396630A1 (en) | 2001-08-09 |
Family
ID=7629375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002396630A Abandoned CA2396630A1 (en) | 2000-02-01 | 2001-01-31 | Process for working up aqueous dispersions of fluoropolymers |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1268573A1 (enExample) |
| JP (1) | JP2003522230A (enExample) |
| AU (1) | AU2001236598A1 (enExample) |
| CA (1) | CA2396630A1 (enExample) |
| DE (1) | DE10004229A1 (enExample) |
| WO (1) | WO2001057096A1 (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6593416B2 (en) | 2000-02-01 | 2003-07-15 | 3M Innovative Properties Company | Fluoropolymers |
| US6720360B1 (en) * | 2000-02-01 | 2004-04-13 | 3M Innovative Properties Company | Ultra-clean fluoropolymers |
| WO2006120967A1 (ja) | 2005-05-12 | 2006-11-16 | Nitto Denko Corporation | ポリテトラフルオロエチレン粒子凝集物の製造方法およびポリテトラフルオロエチレン成形体の製造方法 |
| US20080015304A1 (en) | 2006-07-13 | 2008-01-17 | Klaus Hintzer | Aqueous emulsion polymerization process for producing fluoropolymers |
| CN101437877B (zh) | 2006-05-01 | 2011-12-07 | 日东电工株式会社 | 聚四氟乙烯片材的制造方法及聚四氟乙烯制密封带的制造方法 |
| US20080264864A1 (en) | 2007-04-27 | 2008-10-30 | 3M Innovative Properties Company | PROCESS FOR REMOVING FLUORINATED EMULSIFIER FROM FLUOROPOLMER DISPERSIONS USING AN ANION-EXCHANGE RESIN AND A pH-DEPENDENT SURFACTANT AND FLUOROPOLYMER DISPERSIONS CONTAINING A pH-DEPENDENT SURFACTANT |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3464964A (en) * | 1966-06-13 | 1969-09-02 | Pennsalt Chemicals Corp | Coagulation of polytetrafluoroethylene latex |
| US4623678A (en) * | 1985-04-26 | 1986-11-18 | The Dow Chemical Company | Method for shear coagulation of latex resins |
| DE4233824A1 (de) * | 1992-10-08 | 1994-04-14 | Hoechst Ag | Verfahren zur Aufarbeitung wäßriger Dispersionen von Fluorthermoplasten |
-
2000
- 2000-02-01 DE DE2000104229 patent/DE10004229A1/de not_active Withdrawn
-
2001
- 2001-01-31 WO PCT/US2001/003152 patent/WO2001057096A1/en not_active Ceased
- 2001-01-31 CA CA002396630A patent/CA2396630A1/en not_active Abandoned
- 2001-01-31 JP JP2001557927A patent/JP2003522230A/ja not_active Withdrawn
- 2001-01-31 EP EP01908761A patent/EP1268573A1/en not_active Withdrawn
- 2001-01-31 AU AU2001236598A patent/AU2001236598A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| AU2001236598A1 (en) | 2001-08-14 |
| WO2001057096A1 (en) | 2001-08-09 |
| EP1268573A1 (en) | 2003-01-02 |
| JP2003522230A (ja) | 2003-07-22 |
| DE10004229A1 (de) | 2001-08-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |