FR2404015B1 - Procede perfectionne de preparation de particules agglomerees de polymere granulaire et tetrafluoroethylene - Google Patents
Procede perfectionne de preparation de particules agglomerees de polymere granulaire et tetrafluoroethyleneInfo
- Publication number
- FR2404015B1 FR2404015B1 FR7826941A FR7826941A FR2404015B1 FR 2404015 B1 FR2404015 B1 FR 2404015B1 FR 7826941 A FR7826941 A FR 7826941A FR 7826941 A FR7826941 A FR 7826941A FR 2404015 B1 FR2404015 B1 FR 2404015B1
- Authority
- FR
- France
- Prior art keywords
- tetrafluoroethylene
- preparation
- improved process
- agglomerated particles
- granular polymer
- 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
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
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/835,806 US4123606A (en) | 1977-09-21 | 1977-09-21 | Deagglomeration process |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2404015A1 FR2404015A1 (fr) | 1979-04-20 |
FR2404015B1 true FR2404015B1 (fr) | 1985-07-12 |
Family
ID=25270513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7826941A Expired FR2404015B1 (fr) | 1977-09-21 | 1978-09-20 | Procede perfectionne de preparation de particules agglomerees de polymere granulaire et tetrafluoroethylene |
Country Status (7)
Country | Link |
---|---|
US (1) | US4123606A (fr) |
JP (1) | JPS5454156A (fr) |
DE (1) | DE2841149C3 (fr) |
FR (1) | FR2404015B1 (fr) |
GB (1) | GB2004896B (fr) |
IT (1) | IT1202776B (fr) |
NL (1) | NL190287C (fr) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4241137A (en) * | 1977-11-22 | 1980-12-23 | Daikin Kogyo Co., Ltd. | Process for preparing polytetrafluoroethylene granular powder |
JPS5618624A (en) * | 1979-07-24 | 1981-02-21 | Daikin Ind Ltd | Production of filled polytetrafluoroethylene fine powder |
NL8003949A (nl) * | 1980-07-09 | 1982-02-01 | Electrochem Energieconversie | Werkwijze voor de vervaardiging van een laag van een elektrode voor een cel, in het bijzonder voor een brandstofcel. |
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" |
JPS63159438A (ja) * | 1986-12-22 | 1988-07-02 | Daikin Ind Ltd | テトラフルオロエチレン系共重合体粉末の製法 |
JPH03259926A (ja) * | 1990-03-08 | 1991-11-20 | Daikin Ind Ltd | ポリテトラフルオロエチレン粒状粉末の製法 |
JP3000609B2 (ja) * | 1990-03-08 | 2000-01-17 | ダイキン工業株式会社 | ポリテトラフルオロエチレン粒状粉末の製法 |
US5977295A (en) * | 1990-03-12 | 1999-11-02 | Daikin Industries, Ltd | Continuous process for preparing polytetrafluoroethylene wet powder |
US5709944A (en) * | 1992-02-05 | 1998-01-20 | Daikin Industries, Ltd. | Polytetrafluoroethylene molding powder |
EP0583481B1 (fr) * | 1992-02-05 | 1999-11-10 | Daikin Industries, Ltd. | Polytetrafluoroethylene pulverulent destine au moulage |
JPH0743775U (ja) * | 1993-07-26 | 1995-09-12 | 株式会社ヨネイ | 皺付き片面自己粘着性防音及び防振材 |
JPH0952955A (ja) * | 1995-08-11 | 1997-02-25 | Daikin Ind Ltd | 変性ポリテトラフルオロエチレン粒状粉末の製法 |
DE19547909A1 (de) * | 1995-12-21 | 1997-06-26 | Dyneon Gmbh | Verfahren zur Nachbehandlung von thermoplastischen Fluorpolymeren |
AU2003273757A1 (en) | 2002-10-09 | 2004-05-04 | Novozymes A/S | A method for improving particle compositions |
US20040130968A1 (en) * | 2002-10-09 | 2004-07-08 | Novozymes A/S | Method for improving particle compositions |
ES2353991T3 (es) * | 2006-03-22 | 2011-03-09 | Basf Se | Método y dispositivo para granular polímero fundido que contiene agente propelente. |
US20140162916A1 (en) * | 2011-05-13 | 2014-06-12 | E I Du Pont De Nemours And Company | Slurry technique for producing fluoropolymer composites |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3087921A (en) * | 1958-09-02 | 1963-04-30 | Du Pont | Polytetrafluoroethylene molding powder |
US3115486A (en) * | 1960-11-30 | 1963-12-24 | Du Pont | Process for the preparation of polytetrafluoroethylene molding powder |
GB1033638A (en) * | 1963-09-09 | 1966-06-22 | Du Pont | Polytetrafluoroethylene moulding powders and their preparation |
US3366615A (en) * | 1964-09-16 | 1968-01-30 | Allied Chem | Method for agglomerating granular polytetrafluoroethylene |
US3527857A (en) * | 1965-10-26 | 1970-09-08 | Hoechst Ag | Process for preparing polytetrafluoroethylene-containing powder |
US3781258A (en) * | 1968-09-11 | 1973-12-25 | Daikin Ind Ltd | Polytetrafluoroethylene powder and method of preparation thereof |
JPS568044B2 (fr) * | 1972-07-29 | 1981-02-21 | ||
US3980612A (en) * | 1975-04-11 | 1976-09-14 | E. I. Du Pont De Nemours And Company | Process for reducing filler loss during polytetrafluoroethylene agglomeration |
-
1977
- 1977-09-21 US US05/835,806 patent/US4123606A/en not_active Expired - Lifetime
-
1978
- 1978-09-19 JP JP11418078A patent/JPS5454156A/ja active Granted
- 1978-09-20 GB GB7837501A patent/GB2004896B/en not_active Expired
- 1978-09-20 NL NLAANVRAGE7809580,A patent/NL190287C/xx not_active IP Right Cessation
- 1978-09-20 FR FR7826941A patent/FR2404015B1/fr not_active Expired
- 1978-09-20 IT IT27899/78A patent/IT1202776B/it active
- 1978-09-21 DE DE2841149A patent/DE2841149C3/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0160049B2 (fr) | 1989-12-20 |
DE2841149C2 (fr) | 1987-03-19 |
US4123606A (en) | 1978-10-31 |
NL190287B (nl) | 1993-08-02 |
GB2004896B (en) | 1982-03-10 |
DE2841149C3 (de) | 1993-12-02 |
JPS5454156A (en) | 1979-04-28 |
IT7827899A0 (it) | 1978-09-20 |
NL7809580A (nl) | 1979-03-23 |
IT1202776B (it) | 1989-02-09 |
DE2841149A1 (de) | 1979-03-29 |
GB2004896A (en) | 1979-04-11 |
FR2404015A1 (fr) | 1979-04-20 |
NL190287C (nl) | 1994-01-03 |
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