ES8107275A1 - Procedimiento para la obtencion de polvos sinterizados flui-dos como la arena,con propiedades mejoradas,a base de poli- meros de tetrafluoretileno - Google Patents
Procedimiento para la obtencion de polvos sinterizados flui-dos como la arena,con propiedades mejoradas,a base de poli- meros de tetrafluoretilenoInfo
- Publication number
- ES8107275A1 ES8107275A1 ES497511A ES497511A ES8107275A1 ES 8107275 A1 ES8107275 A1 ES 8107275A1 ES 497511 A ES497511 A ES 497511A ES 497511 A ES497511 A ES 497511A ES 8107275 A1 ES8107275 A1 ES 8107275A1
- Authority
- ES
- Spain
- Prior art keywords
- weight
- stirring
- free
- polymers
- pourable
- 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
- C08J3/16—Powdering or granulating by coagulating dispersions
-
- 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
-
- 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
-
- 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)
- Compositions Of Macromolecular Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
PROCEDIMIENTO PARA LA OBTENCION DE POLVOS SINTETIZADOS, FLUIDOS COMO LA ARENA, A BASE DE POLIMEROS QUE CONTENGAN, AL MENOS, 98,5 UNIDADES POLIMERIZADAS DE TETRAFLUORETILENO. CONSISTE EN PREPARAR UNA DISPERSION COLOIDAL DE POLIMERIZADO EN UN MEDIO ACUOSO EN PRESENCIA DE UN COMPUESTO DE SUPERFICIE ACTIVA; SE AGITA Y SE LE AGREGA UN COMPUESTO INORGANICO DISOCIANTE HIDROSOLUBLE, HASTA CONSEGUIR UN ESPESAMIENTO SUFICIENTE, PUESTO DE MANIFIESTO POR LA FALTA DE HOMOGENEIDAD OPTICA, CLARAMENTE VISIBLE; DESPUES SE AGREGA UN LIQUIDO ORGANICO QUE HUMEDEZCA BIEN LAS PARTICULAS DEL POLIMERIZADO QUE SE HALLAN EN DISPERSION Y, EVENTUALMENTE, SE AGREGA LA CARGA. UNA VEZ FORMADO EL GRANULADO DE POLIMERO, SE LAVA, SE SEPARA DEL MEDIO ACUOSO Y SE SECA. DE USO EN PROCESOS DE EXTRUSION PARA FABRICAR BARRAS Y TUBOS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792949908 DE2949908A1 (de) | 1979-12-12 | 1979-12-12 | Rieselfaehige sinterpulver mit verbesserten eigenschaften auf basis von tetrafluorethylen-polymeren und verfahren zu deren herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8107275A1 true ES8107275A1 (es) | 1981-10-16 |
ES497511A0 ES497511A0 (es) | 1981-10-16 |
Family
ID=6088222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES497511A Granted ES497511A0 (es) | 1979-12-12 | 1980-12-05 | Procedimiento para la obtencion de polvos sinterizados flui-dos como la arena,con propiedades mejoradas,a base de poli- meros de tetrafluoretileno |
Country Status (7)
Country | Link |
---|---|
US (2) | US4368296A (es) |
EP (1) | EP0030664B1 (es) |
JP (1) | JPS56131629A (es) |
CA (1) | CA1192348A (es) |
DE (2) | DE2949908A1 (es) |
ES (1) | ES497511A0 (es) |
ZA (1) | ZA807757B (es) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5718710A (en) * | 1980-07-08 | 1982-01-30 | Asahi Glass Co Ltd | Copolymer capable of giving elastomer containing fluorine having improved cold and oil resistance |
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" |
US4400386A (en) * | 1981-11-06 | 1983-08-23 | Riker Laboratories, Inc. | Antimicrobial derivatives of 8-amino and 8-aminomethyl benzo(ij)quinolizine |
US4524148A (en) * | 1981-11-06 | 1985-06-18 | Riker Laboratories, Inc. | Antimicrobial 8,9-dihalobenzo[ij]quinolizine carboxylic acids |
US4556713A (en) * | 1981-11-06 | 1985-12-03 | Riker Laboratories, Inc. | 6-Fluoro-5-nitroquinaldine |
US4380543A (en) * | 1981-11-06 | 1983-04-19 | Riker Laboratories, Inc. | Antimicrobial 8-cyano-6,7-dihydro-5-methyl-1-oxo-1H,5H-benzo[ij]quinolizine-2-carboxylic acids |
US4404207A (en) * | 1981-11-06 | 1983-09-13 | Riker Laboratories, Inc. | Antimicrobial 8-substituted benzo [IJ]quinolizines |
US4397980A (en) * | 1982-09-17 | 1983-08-09 | E. I. Du Pont De Nemours And Company | Process for preparing PTFE powdered resins containing pigments employing ammonium carbonate or ammonium bicarbonate |
US4530881A (en) * | 1983-02-24 | 1985-07-23 | Raymark Industries, Inc. | Fluoroelastomer-based friction material having improved frictional properties |
GB8306989D0 (en) * | 1983-03-14 | 1983-04-20 | Ae Plc | Composition of matter |
JPS59199774A (ja) * | 1983-04-27 | 1984-11-12 | Daikin Ind Ltd | 下塗り剤組成物 |
US4580790A (en) * | 1984-06-21 | 1986-04-08 | Hughes Aircraft Company | Sintered polytetrafluoroethylene composite material and seal assembly |
JPS62260849A (ja) * | 1986-04-11 | 1987-11-13 | Daikin Ind Ltd | 熱溶融性フツ素樹脂の顆粒状粉末およびその製造法 |
JPS6356532A (ja) * | 1986-08-27 | 1988-03-11 | Daikin Ind Ltd | 変性ポリテトラフルオロエチレンファインパウダ−及びその製造方法 |
EP0284165B1 (en) * | 1987-03-27 | 1991-01-02 | Asahi Kasei Kogyo Kabushiki Kaisha | A shaped article of a tetrafluoroethylene polymer |
CA1301400C (en) * | 1987-11-09 | 1992-05-19 | Sellathurai Suppiah | Porous composite materials and methods for preparing them |
US5462705A (en) * | 1988-10-27 | 1995-10-31 | Labsphere, Inc. | Method of forming diffusely reflecting sintered fluorinated long-chain addition polymers doped with pigments for color standard use |
DE3941368A1 (de) * | 1989-12-15 | 1991-06-20 | Hoechst Ag | Verfahren zur herstellung eines agglomerierten formpulvers aus polytetrafluorethylen und hydrophoben fuellstoffen |
JP3000654B2 (ja) * | 1990-10-19 | 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微粒子および粉末 |
DE4218965A1 (de) * | 1992-06-10 | 1993-12-16 | Hoechst Ag | Verfahren und Vorrichtung zur Herstellung eines Polymerisates des Tetrafluorethylens in wäßriger Suspension |
US5399307A (en) * | 1993-06-18 | 1995-03-21 | Dalton; Robert E. | Methods of compression molding two or more polytetrafluoroethylene resin layers |
GB2327087A (en) * | 1995-01-18 | 1999-01-13 | Gore & Ass | Dispersion of PTFE particles |
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 |
JP3152284B2 (ja) | 1997-03-17 | 2001-04-03 | ダイキン工業株式会社 | 変性ポリテトラフルオロエチレン粒状粉末 |
US6689833B1 (en) * | 1997-04-09 | 2004-02-10 | E. I. Du Pont De Nemours And Company | Fluoropolymer stabilization |
EP1108761A3 (en) * | 1999-12-13 | 2001-07-18 | Canon Kabushiki Kaisha | Polymer film, and polymeric compound for the production thereof |
US6593410B2 (en) * | 2000-02-23 | 2003-07-15 | Alliant Techsystems Inc. | High strength reactive materials |
US7977420B2 (en) * | 2000-02-23 | 2011-07-12 | Alliant Techsystems Inc. | Reactive material compositions, shot shells including reactive materials, and a method of producing same |
US20050199323A1 (en) * | 2004-03-15 | 2005-09-15 | Nielson Daniel B. | Reactive material enhanced munition compositions and projectiles containing same |
USRE45899E1 (en) | 2000-02-23 | 2016-02-23 | Orbital Atk, Inc. | Low temperature, extrudable, high density reactive materials |
US8122833B2 (en) * | 2005-10-04 | 2012-02-28 | Alliant Techsystems Inc. | Reactive material enhanced projectiles and related methods |
US6972806B2 (en) * | 2000-03-17 | 2005-12-06 | Thomson Licensing | Method and apparatus for preventing data corruption from video related enhancements |
ITMI20011613A1 (it) * | 2001-07-26 | 2003-01-26 | Ausimont Spa | Processo di coagulazione di polveri fini di ptfe |
US7176265B2 (en) * | 2002-11-22 | 2007-02-13 | E. I. Du Pont De Nemours And Company | Directly polymerized low molecular weight granular polytetrafluoroethylene |
FR2867469A1 (fr) | 2004-03-15 | 2005-09-16 | Alliant Techsystems Inc | Compositions reactives contenant un metal, et leur procede de production |
WO2006095657A1 (ja) * | 2005-03-07 | 2006-09-14 | Asahi Glass Company, Limited | 充填材入りポリテトラフルオロエチレン造粒物の製造方法 |
KR101271693B1 (ko) * | 2010-05-10 | 2013-06-04 | 삼성중공업 주식회사 | 선박용 추진 장치 및 이를 포함하는 선박 |
EP3750925A1 (en) | 2010-09-30 | 2020-12-16 | Daikin Industries, Ltd. | Polytetrafluoroethylene fine powder |
WO2012043757A1 (ja) | 2010-09-30 | 2012-04-05 | ダイキン工業株式会社 | ポリテトラフルオロエチレンファインパウダーの製造方法 |
JP5328864B2 (ja) * | 2010-09-30 | 2013-10-30 | ダイキン工業株式会社 | ドリップ防止剤、並びに、樹脂組成物 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB917223A (en) | 1959-04-30 | 1963-01-30 | Glacier Co Ltd | Homogeneous solid materials |
US3142665A (en) * | 1960-07-26 | 1964-07-28 | Du Pont | Novel tetrafluoroethylene resins and their preparation |
US3245972A (en) * | 1962-06-21 | 1966-04-12 | Du Pont | Polytetrafluoroethylene molding powder and its preparation |
US3366615A (en) * | 1964-09-16 | 1968-01-30 | Allied Chem | Method for agglomerating granular polytetrafluoroethylene |
US3558550A (en) * | 1967-02-07 | 1971-01-26 | Montedison Spa | Sinterings of polytetrafluoroethylene loaded with titanium and the preparation thereof |
US4038230A (en) * | 1970-11-19 | 1977-07-26 | Allied Chemical Corporation | Aqueous dispersion of particulate spheroidal polytetrafluoroethylene |
FR2153488A5 (es) * | 1971-09-13 | 1973-05-04 | Ugine Kuhlmann | |
US3819594A (en) * | 1972-05-17 | 1974-06-25 | Du Pont | Tetrafluoroethylene fine powder resin of a copolymer of tetrafluoroethylene and perfluoro(alkyl vinyl ether) |
JPS542224B2 (es) * | 1972-07-03 | 1979-02-03 | ||
JPS5311296B2 (es) * | 1974-03-28 | 1978-04-20 | ||
US3980596A (en) * | 1975-04-11 | 1976-09-14 | E. I. Du Pont De Nemours And Co. | Process for reducing filler loss |
US3980612A (en) * | 1975-04-11 | 1976-09-14 | E. I. Du Pont De Nemours And Company | Process for reducing filler loss during polytetrafluoroethylene agglomeration |
JPS5234653A (en) * | 1975-09-11 | 1977-03-16 | Nec Corp | Current switching flip-flop |
US4036802A (en) * | 1975-09-24 | 1977-07-19 | E. I. Du Pont De Nemours And Company | Tetrafluoroethylene copolymer fine powder resin |
JPS52114644A (en) * | 1976-03-23 | 1977-09-26 | Daikin Ind Ltd | Preparation of finely powdered polytetrafluoroethylene containing fill ers |
JPS5841933B2 (ja) * | 1977-06-08 | 1983-09-16 | 住友金属工業株式会社 | 鉄鋼用連続鋳造鋳型 |
DE2744244C3 (de) * | 1977-10-01 | 1981-01-08 | Hoechst Ag, 6000 Frankfurt | Thermisch vorbehandeltes, aus der Schmelze nicht verarbeitbares, mit einem perfluorierten Monomeren modifiziertes Tetrafluoräthylen-Polymerisatpulver und Verfahren zur Herstellung von Pulvern von aus der Schmelze nicht verarbeitbaren Tetrafluoräthylen-Polymerisaten mit hohem Schüttgewicht und guter Rieselfähigkeit |
-
1979
- 1979-12-12 DE DE19792949908 patent/DE2949908A1/de not_active Withdrawn
-
1980
- 1980-11-28 EP EP80107445A patent/EP0030664B1/de not_active Expired
- 1980-11-28 DE DE8080107445T patent/DE3069917D1/de not_active Expired
- 1980-12-05 ES ES497511A patent/ES497511A0/es active Granted
- 1980-12-08 US US06/214,465 patent/US4368296A/en not_active Expired - Lifetime
- 1980-12-11 ZA ZA00807757A patent/ZA807757B/xx unknown
- 1980-12-11 CA CA000366609A patent/CA1192348A/en not_active Expired
- 1980-12-11 JP JP17392780A patent/JPS56131629A/ja active Granted
-
1982
- 1982-09-13 US US06/417,122 patent/US4408007A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US4408007A (en) | 1983-10-04 |
DE2949908A1 (de) | 1981-06-19 |
JPH0217576B2 (es) | 1990-04-20 |
EP0030664B1 (de) | 1985-01-02 |
EP0030664A3 (en) | 1981-09-30 |
US4368296A (en) | 1983-01-11 |
JPS56131629A (en) | 1981-10-15 |
ZA807757B (en) | 1982-01-27 |
EP0030664A2 (de) | 1981-06-24 |
DE3069917D1 (en) | 1985-02-14 |
CA1192348A (en) | 1985-08-20 |
ES497511A0 (es) | 1981-10-16 |
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