DE2711455C2 - Polytetrafluoräthylen-Feinpulver und Verfahren zu dessen Herstellung - Google Patents
Polytetrafluoräthylen-Feinpulver und Verfahren zu dessen HerstellungInfo
- Publication number
- DE2711455C2 DE2711455C2 DE2711455A DE2711455A DE2711455C2 DE 2711455 C2 DE2711455 C2 DE 2711455C2 DE 2711455 A DE2711455 A DE 2711455A DE 2711455 A DE2711455 A DE 2711455A DE 2711455 C2 DE2711455 C2 DE 2711455C2
- Authority
- DE
- Germany
- Prior art keywords
- polymerization
- temperature
- polymerized
- index
- carried out
- 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
- 238000000034 method Methods 0.000 title claims description 27
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims description 24
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims description 24
- 239000000843 powder Substances 0.000 title claims description 22
- -1 Polytetrafluoroethylene Polymers 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000006116 polymerization reaction Methods 0.000 claims description 59
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 28
- 229920000642 polymer Polymers 0.000 claims description 22
- 239000002270 dispersing agent Substances 0.000 claims description 8
- 239000003505 polymerization initiator Substances 0.000 claims description 6
- 230000000379 polymerizing effect Effects 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 12
- 238000002474 experimental method Methods 0.000 description 11
- 239000002245 particle Substances 0.000 description 10
- 239000003999 initiator Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000012736 aqueous medium Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- MKTOIPPVFPJEQO-UHFFFAOYSA-N 4-(3-carboxypropanoylperoxy)-4-oxobutanoic acid Chemical compound OC(=O)CCC(=O)OOC(=O)CCC(O)=O MKTOIPPVFPJEQO-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 238000010557 suspension polymerization reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 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
- 239000003054 catalyst Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 238000009778 extrusion testing Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- SNGREZUHAYWORS-UHFFFAOYSA-N perfluorooctanoic acid Chemical class OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F SNGREZUHAYWORS-UHFFFAOYSA-N 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 229920000052 poly(p-xylylene) Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method 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
- C08F14/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F14/18—Monomers containing fluorine
- C08F14/26—Tetrafluoroethene
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 |
|---|---|---|---|
| JP3008076A JPS52112686A (en) | 1976-03-18 | 1976-03-18 | Preparation of tetrafluoroethylene polymer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2711455A1 DE2711455A1 (de) | 1977-10-13 |
| DE2711455C2 true DE2711455C2 (de) | 1982-03-04 |
Family
ID=12293808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2711455A Expired DE2711455C2 (de) | 1976-03-18 | 1977-03-16 | Polytetrafluoräthylen-Feinpulver und Verfahren zu dessen Herstellung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4098975A (enExample) |
| JP (1) | JPS52112686A (enExample) |
| DE (1) | DE2711455C2 (enExample) |
| GB (1) | GB1545675A (enExample) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4342675A (en) * | 1978-06-16 | 1982-08-03 | E. I. Du Pont De Nemours And Company | Process for preparing aqueous dispersion of polytetrafluoroethylene |
| FR2491477A1 (fr) * | 1979-12-21 | 1982-04-09 | Ugine Kuhlmann | Procede de polymerisation du tetrafluorethylene en dispersion aqueuse |
| DE3024450A1 (de) * | 1980-06-28 | 1982-01-28 | Hoechst Ag, 6000 Frankfurt | Verfahren zur herstellung von waessrigen, kolloidalen dispersionen von copolymerisaten des typs tetrafluorethylen-ethylen |
| JPS59109506A (ja) * | 1982-12-14 | 1984-06-25 | Daikin Ind Ltd | 新規なポリテトラフルオロエチレン・フアインパウダ− |
| US4530981A (en) * | 1984-08-13 | 1985-07-23 | E. I. Du Pont De Nemours And Company | Process for making tetrafluoroethylene fine powder |
| US5405923A (en) * | 1994-05-02 | 1995-04-11 | E. I Du Pont De Nemours And Company | Suspension polymerization of TFE |
| US5756620A (en) * | 1995-11-15 | 1998-05-26 | E. I. Du Pont De Nemours And Company | Tetrafluoroethylene polymer for improved paste extrusion |
| US6177533B1 (en) | 1998-11-13 | 2001-01-23 | E. I. Du Pont De Nemours And Company | Polytetrafluoroethylene resin |
| US6136933A (en) * | 1998-11-13 | 2000-10-24 | E. I. Du Pont De Nemours And Company | Process for polymerizing tetrafluoroethylene |
| CN104583247B (zh) * | 2012-06-20 | 2016-12-21 | 索尔维特殊聚合物意大利有限公司 | 四氟乙烯共聚物 |
| JP6363071B2 (ja) * | 2012-06-20 | 2018-07-25 | ソルベイ スペシャルティ ポリマーズ イタリー エス．ピー．エー． | テトラフルオロエチレンコポリマー |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB885809A (en) * | 1959-08-11 | 1961-12-28 | Du Pont | Novel tetrafluorethylene resins and their preparation |
| US3624064A (en) * | 1967-05-15 | 1971-11-30 | Kureha Chemical Ind Co Ltd | Polymerization of fluoroethylenes |
| US3817965A (en) * | 1968-02-27 | 1974-06-18 | Aquitaine Petrole | Polymerization of vinyl compounds in suspension |
| US3945985A (en) * | 1968-08-29 | 1976-03-23 | Stauffer Chemical Company | Method for preparing vinyl halide polymers having improved processing characteristics and polymers prepared thereby |
| GB1397931A (en) * | 1971-08-12 | 1975-06-18 | Ici Ltd | Extrusion powder |
| FR2153488A5 (enExample) * | 1971-09-13 | 1973-05-04 | Ugine Kuhlmann | |
| JPS4986484A (enExample) * | 1972-12-23 | 1974-08-19 | ||
| US4001482A (en) * | 1975-04-30 | 1977-01-04 | Continental Oil Company | Preparation of vinyl halide-containing polymers |
-
1976
- 1976-03-18 JP JP3008076A patent/JPS52112686A/ja active Granted
-
1977
- 1977-03-11 US US05/776,919 patent/US4098975A/en not_active Expired - Lifetime
- 1977-03-14 GB GB10647/77A patent/GB1545675A/en not_active Expired
- 1977-03-16 DE DE2711455A patent/DE2711455C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1545675A (en) | 1979-05-10 |
| JPS52112686A (en) | 1977-09-21 |
| DE2711455A1 (de) | 1977-10-13 |
| US4098975A (en) | 1978-07-04 |
| JPS5718526B2 (enExample) | 1982-04-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| D2 | Grant after examination | ||
| 8339 | Ceased/non-payment of the annual fee |