ATE217017T1 - Verfahren zur herstellung von rieselfähigen polytetrafluorethylen-formpulvern - Google Patents
Verfahren zur herstellung von rieselfähigen polytetrafluorethylen-formpulvernInfo
- Publication number
- ATE217017T1 ATE217017T1 AT95944639T AT95944639T ATE217017T1 AT E217017 T1 ATE217017 T1 AT E217017T1 AT 95944639 T AT95944639 T AT 95944639T AT 95944639 T AT95944639 T AT 95944639T AT E217017 T1 ATE217017 T1 AT E217017T1
- Authority
- AT
- Austria
- Prior art keywords
- polytetrafluorethylene
- flowing
- producing free
- molded powders
- powders
- Prior art date
Links
- -1 POLYTETRAFLUORETHYLENE Polymers 0.000 title abstract 3
- 239000000843 powder Substances 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 title 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 abstract 2
- 229920000642 polymer Polymers 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 150000002009 diols Chemical class 0.000 abstract 1
- 150000004072 triols Chemical class 0.000 abstract 1
- 239000000080 wetting agent Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/16—Powdering or granulating by coagulating dispersions
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/06—Ethers; Acetals; Ketals; Ortho-esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or 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; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or 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; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or 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; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/362,378 US5502161A (en) | 1994-12-21 | 1994-12-21 | Method for the production of free-flowing tetrafluoroethylene polymer molding powders |
| PCT/US1995/016671 WO1996020241A2 (en) | 1994-12-21 | 1995-12-13 | Method for the production of free-flowing tetrafluoroethylene polymer molding powders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE217017T1 true ATE217017T1 (de) | 2002-05-15 |
Family
ID=23425875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT95944639T ATE217017T1 (de) | 1994-12-21 | 1995-12-13 | Verfahren zur herstellung von rieselfähigen polytetrafluorethylen-formpulvern |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5502161A (de) |
| EP (1) | EP0799273B1 (de) |
| JP (1) | JP3495736B2 (de) |
| AT (1) | ATE217017T1 (de) |
| CA (1) | CA2208242C (de) |
| DE (1) | DE69526591T2 (de) |
| DK (1) | DK0799273T3 (de) |
| ES (1) | ES2176362T3 (de) |
| PT (1) | PT799273E (de) |
| WO (1) | WO1996020241A2 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6911489B2 (en) * | 2002-06-10 | 2005-06-28 | Asahi Glass Fluoropolymers Usa, Inc. | Methods for preparing agglomerated pellets of polytetrafluoroethylene and molded articles and the agglomerated pellets of polytetrafluoroethylene and molded articles prepared thereby |
| DE102011078766B4 (de) * | 2011-07-06 | 2017-02-02 | Leibniz-Institut Für Polymerforschung Dresden E.V. | Verfahren zur verarbeitung von ptfe |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3244687A (en) * | 1956-05-24 | 1966-04-05 | Coathylene Sa | Process for the production of dry, finely divided and fusible polyethylene powders |
| GB1100388A (en) * | 1964-05-18 | 1968-01-24 | Daikin Ind Ltd | Polytetrafluoroethylene powder and method of preparation thereof |
| US3527857A (en) * | 1965-10-26 | 1970-09-08 | Hoechst Ag | Process for preparing polytetrafluoroethylene-containing powder |
| DE1679830C3 (de) * | 1965-12-30 | 1974-01-10 | Farbwerke Hoechst Ag, Vormals Meister Lucius & Bruening, 6000 Frankfurt | Verfahren zur Herstellung eines Granulats aus pulvrigem Polytetrafluoräthylen |
| US3597405A (en) * | 1966-04-21 | 1971-08-03 | Daikin Ind Ltd | Polytertrafluoroethylene powder and method for making the same |
| US3781258A (en) * | 1968-09-11 | 1973-12-25 | Daikin Ind Ltd | Polytetrafluoroethylene powder and method of preparation thereof |
| DE1814869C3 (de) * | 1968-12-16 | 1974-07-18 | Farbwerke Hoechst Ag, Vorm. Meister Lucius & Bruening, 6230 Frankfurt | Wäßrige Paste zur Herstellung von elektrischen Widerständen |
| US3682859A (en) * | 1969-06-20 | 1972-08-08 | Liquid Nitrogen Processing | Free-flowing tetrafluoroethylene polymer composition and process of producing the same |
| US3983200A (en) * | 1970-12-11 | 1976-09-28 | Imperial Chemical Industries Limited | Method for the production of polytetrafluoroethylene moulding powders |
| US3882217A (en) * | 1970-12-11 | 1975-05-06 | Ici Ltd | Method for the production of free-flowing polytetrafluoroethylene molding powders |
| DE2132680A1 (de) * | 1971-07-01 | 1973-01-18 | Glasforskningsinstitutet | Verfahren zur herstellung von pelletisierten glasgemengen |
| US4143110A (en) * | 1977-07-08 | 1979-03-06 | Asahi Glass Company Ltd. | Method of agglomerating polytetrafluoroethylene powder |
| DE3135598A1 (de) * | 1981-09-09 | 1983-03-17 | Hoechst Ag, 6000 Frankfurt | "kontinuierliches verfahren zur agglomerierung von ptee-pulvern im fluessigen medium und damit gewonnenes modifiziertes ptee-pulver" |
| DE3941368A1 (de) * | 1989-12-15 | 1991-06-20 | Hoechst Ag | Verfahren zur herstellung eines agglomerierten formpulvers aus polytetrafluorethylen und hydrophoben fuellstoffen |
-
1994
- 1994-12-21 US US08/362,378 patent/US5502161A/en not_active Expired - Lifetime
-
1995
- 1995-12-13 ES ES95944639T patent/ES2176362T3/es not_active Expired - Lifetime
- 1995-12-13 JP JP52051896A patent/JP3495736B2/ja not_active Expired - Fee Related
- 1995-12-13 EP EP95944639A patent/EP0799273B1/de not_active Expired - Lifetime
- 1995-12-13 PT PT95944639T patent/PT799273E/pt unknown
- 1995-12-13 AT AT95944639T patent/ATE217017T1/de not_active IP Right Cessation
- 1995-12-13 CA CA002208242A patent/CA2208242C/en not_active Expired - Fee Related
- 1995-12-13 WO PCT/US1995/016671 patent/WO1996020241A2/en not_active Ceased
- 1995-12-13 DK DK95944639T patent/DK0799273T3/da active
- 1995-12-13 DE DE69526591T patent/DE69526591T2/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0799273A2 (de) | 1997-10-08 |
| PT799273E (pt) | 2002-10-31 |
| JPH10511723A (ja) | 1998-11-10 |
| DE69526591D1 (de) | 2002-06-06 |
| ES2176362T3 (es) | 2002-12-01 |
| WO1996020241A3 (en) | 1996-09-06 |
| DK0799273T3 (da) | 2002-07-29 |
| JP3495736B2 (ja) | 2004-02-09 |
| CA2208242C (en) | 2005-06-14 |
| CA2208242A1 (en) | 1996-07-04 |
| MX9704635A (es) | 1997-09-30 |
| US5502161A (en) | 1996-03-26 |
| WO1996020241A2 (en) | 1996-07-04 |
| DE69526591T2 (de) | 2002-12-05 |
| EP0799273B1 (de) | 2002-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| UEP | Publication of translation of european patent specification | ||
| REN | Ceased due to non-payment of the annual fee |