DE2244279C3 - Verfahren zur Polymerisation von Tetrafluoräthylen in wässriger Suspension und Verwendung des Verfahrensproduktes zum direkten Extrudieren und zum automatischen Beschicken der Pressformen - Google Patents
Verfahren zur Polymerisation von Tetrafluoräthylen in wässriger Suspension und Verwendung des Verfahrensproduktes zum direkten Extrudieren und zum automatischen Beschicken der PressformenInfo
- Publication number
- DE2244279C3 DE2244279C3 DE2244279A DE2244279A DE2244279C3 DE 2244279 C3 DE2244279 C3 DE 2244279C3 DE 2244279 A DE2244279 A DE 2244279A DE 2244279 A DE2244279 A DE 2244279A DE 2244279 C3 DE2244279 C3 DE 2244279C3
- Authority
- DE
- Germany
- Prior art keywords
- polymerization
- tetrafluoroethylene
- polymer
- polytetrafluoroethylene
- accelerator
- 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.)
- Expired
Links
- 238000006116 polymerization reaction Methods 0.000 title claims description 74
- 238000000034 method Methods 0.000 title claims description 33
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 title claims description 33
- 230000008569 process Effects 0.000 title claims description 25
- 238000001125 extrusion Methods 0.000 title claims description 7
- 238000011068 loading method Methods 0.000 title claims description 5
- 239000007900 aqueous suspension Substances 0.000 title claims description 4
- 230000006835 compression Effects 0.000 title 1
- 238000007906 compression Methods 0.000 title 1
- 229920000642 polymer Polymers 0.000 claims description 60
- -1 Polytetrafluoroethylene Polymers 0.000 claims description 42
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 41
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 41
- 239000000843 powder Substances 0.000 claims description 28
- 239000000725 suspension Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000000839 emulsion Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 230000005865 ionizing radiation Effects 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 150000001447 alkali salts Chemical class 0.000 claims description 2
- 150000003863 ammonium salts Chemical class 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 230000000379 polymerizing effect Effects 0.000 claims 1
- 239000006185 dispersion Substances 0.000 description 13
- 239000002245 particle Substances 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000003995 emulsifying agent Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000000872 buffer Substances 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000005662 Paraffin oil Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- IMBKASBLAKCLEM-UHFFFAOYSA-L ferrous ammonium sulfate (anhydrous) Chemical compound [NH4+].[NH4+].[Fe+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O IMBKASBLAKCLEM-UHFFFAOYSA-L 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 2
- 229940048086 sodium pyrophosphate Drugs 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- FQPPVRBDGWOFJS-UHFFFAOYSA-N 5-amino-4-chloro-2-phenylpyridazin-3-one;7-chloro-3-methylquinoline-8-carboxylic acid Chemical compound OC(=O)C1=C(Cl)C=CC2=CC(C)=CN=C21.O=C1C(Cl)=C(N)C=NN1C1=CC=CC=C1 FQPPVRBDGWOFJS-UHFFFAOYSA-N 0.000 description 1
- XCLJGNXXYURRGC-UHFFFAOYSA-M FC(C(=O)[O-])CCCCCC.[Na+] Chemical compound FC(C(=O)[O-])CCCCCC.[Na+] XCLJGNXXYURRGC-UHFFFAOYSA-M 0.000 description 1
- 239000004159 Potassium persulphate Substances 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- YOALFLHFSFEMLP-UHFFFAOYSA-N azane;2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctanoic acid Chemical compound [NH4+].[O-]C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YOALFLHFSFEMLP-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical group FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000019394 potassium persulphate Nutrition 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- LWHQXUODFPPQTL-UHFFFAOYSA-M sodium;2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctanoate Chemical compound [Na+].[O-]C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F LWHQXUODFPPQTL-UHFFFAOYSA-M 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 238000011282 treatment 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
- C08F259/00—Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00
- C08F259/08—Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00 on to polymers containing fluorine
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)
- Polymerisation Methods In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7132874A FR2153488A5 (enExample) | 1971-09-13 | 1971-09-13 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2244279A1 DE2244279A1 (de) | 1973-03-22 |
| DE2244279B2 DE2244279B2 (de) | 1978-03-09 |
| DE2244279C3 true DE2244279C3 (de) | 1978-11-02 |
Family
ID=9082820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2244279A Expired DE2244279C3 (de) | 1971-09-13 | 1972-09-09 | Verfahren zur Polymerisation von Tetrafluoräthylen in wässriger Suspension und Verwendung des Verfahrensproduktes zum direkten Extrudieren und zum automatischen Beschicken der Pressformen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3870691A (enExample) |
| JP (1) | JPS5125077B2 (enExample) |
| DE (1) | DE2244279C3 (enExample) |
| FR (1) | FR2153488A5 (enExample) |
| GB (1) | GB1408300A (enExample) |
| IT (1) | IT964990B (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52112686A (en) * | 1976-03-18 | 1977-09-21 | Daikin Ind Ltd | Preparation of tetrafluoroethylene polymer |
| JPS53110309U (enExample) * | 1977-02-08 | 1978-09-04 | ||
| DE2949908A1 (de) * | 1979-12-12 | 1981-06-19 | Hoechst Ag, 6230 Frankfurt | Rieselfaehige sinterpulver mit verbesserten eigenschaften auf basis von tetrafluorethylen-polymeren und verfahren zu deren herstellung |
| JPS61283607A (ja) * | 1985-06-11 | 1986-12-13 | Japan Synthetic Rubber Co Ltd | 液晶装置用スペーサの製造方法 |
| US5405923A (en) * | 1994-05-02 | 1995-04-11 | E. I Du Pont De Nemours And Company | Suspension polymerization of TFE |
| DE102004016876A1 (de) * | 2004-03-29 | 2005-10-20 | Leibniz Inst Polymerforschung | Radikalisch gekoppelte Perfluorpolymer-Polymer-Materialien und Verfahren zu ihrer Herstellung |
| JP4734878B2 (ja) * | 2004-09-28 | 2011-07-27 | 旭硝子株式会社 | ガス吸収装置およびガス吸収方法、重合体の製造方法 |
| EP1845117A1 (en) * | 2006-04-11 | 2007-10-17 | Solvay Solexis S.p.A. | Polymerisation process |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2593583A (en) * | 1951-03-14 | 1952-04-22 | Du Pont | Method for coagulating aqueous dispersions of polytetrafluoroethylene |
| US3245972A (en) * | 1962-06-21 | 1966-04-12 | Du Pont | Polytetrafluoroethylene molding powder and its preparation |
-
1971
- 1971-09-13 FR FR7132874A patent/FR2153488A5/fr not_active Expired
-
1972
- 1972-08-23 IT IT69715/72A patent/IT964990B/it active
- 1972-09-08 US US287255A patent/US3870691A/en not_active Expired - Lifetime
- 1972-09-09 DE DE2244279A patent/DE2244279C3/de not_active Expired
- 1972-09-11 GB GB4212872A patent/GB1408300A/en not_active Expired
- 1972-09-12 JP JP47090983A patent/JPS5125077B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2244279B2 (de) | 1978-03-09 |
| JPS5125077B2 (enExample) | 1976-07-28 |
| FR2153488A5 (enExample) | 1973-05-04 |
| DE2244279A1 (de) | 1973-03-22 |
| IT964990B (it) | 1974-01-31 |
| GB1408300A (en) | 1975-10-01 |
| US3870691A (en) | 1975-03-11 |
| JPS4837485A (enExample) | 1973-06-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) |