JP2015516029A - 変色を低減するための酸化剤を利用するフッ素化ポリマー樹脂処理 - Google Patents

変色を低減するための酸化剤を利用するフッ素化ポリマー樹脂処理 Download PDF

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JP2015516029A
JP2015516029A JP2015511551A JP2015511551A JP2015516029A JP 2015516029 A JP2015516029 A JP 2015516029A JP 2015511551 A JP2015511551 A JP 2015511551A JP 2015511551 A JP2015511551 A JP 2015511551A JP 2015516029 A JP2015516029 A JP 2015516029A
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fluorinated polymer
dispersion
reactor
polymer resin
aqueous
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Pending
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JP2015516029A5 (enExample
Inventor
ダグラス ブラザーズ ポール
ダグラス ブラザーズ ポール
エリザベス バーチ ハイディ
エリザベス バーチ ハイディ
アレン チャップマン グレゴリー
アレン チャップマン グレゴリー
ヴィシュヌ ガンガル スバシュ
ヴィシュヌ ガンガル スバシュ
ポール スミス アダム
ポール スミス アダム
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EIDP Inc
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EI Du Pont de Nemours and Co
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Publication of JP2015516029A publication Critical patent/JP2015516029A/ja
Publication of JP2015516029A5 publication Critical patent/JP2015516029A5/ja
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    • 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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/06—Oxidation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/063—Titanium; Oxides or hydroxides thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/06—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of zinc, cadmium or mercury
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/39—Photocatalytic properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
    • B01J35/45—Nanoparticles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • 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
    • C08F114/00—Homopolymers 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
    • C08F114/18—Monomers containing fluorine
    • C08F114/26—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
    • C08F214/00—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
    • C08F214/18—Monomers containing fluorine
    • C08F214/26—Tetrafluoroethene
    • C08F214/262—Tetrafluoroethene with fluorinated vinyl ethers
    • 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
    • C08F6/00—Post-polymerisation treatments
    • C08F6/006—Removal of residual monomers by chemical reaction, e.g. scavenging
    • 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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/18—Introducing halogen atoms or halogen-containing groups
    • C08F8/20—Halogenation
    • C08F8/22—Halogenation by reaction with free halogens
    • 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
    • C08J3/28—Treatment by wave energy or particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/465—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using rollers
    • B29C48/467—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using rollers using single rollers, e.g. provided with protrusions, closely surrounded by a housing with movement of the material in the axial direction
    • B29C48/468—Cavity transfer mixing devices, i.e. a roller and surrounding barrel both provided with cavities; Barrels and rollers therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/67—Screws having incorporated mixing devices not provided for in groups B29C48/52 - B29C48/66
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
    • C08F2800/20—Copolymer characterised by the proportions of the comonomers expressed as weight or mass percentages
    • 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
    • C08F2810/00—Chemical modification of a polymer
    • C08F2810/10—Chemical modification of a polymer including a reactive processing step which leads, inter alia, to morphological and/or rheological modifications, e.g. visbreaking
    • 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
    • C08F6/00—Post-polymerisation treatments
    • C08F6/14—Treatment of polymer emulsions
    • C08F6/22—Coagulation
    • 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

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
JP2015511551A 2012-05-09 2013-05-03 変色を低減するための酸化剤を利用するフッ素化ポリマー樹脂処理 Pending JP2015516029A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261644719P 2012-05-09 2012-05-09
US61/644,719 2012-05-09
PCT/US2013/039402 WO2013169581A1 (en) 2012-05-09 2013-05-03 Fluoropolymer resin treatment employing oxidizing agent to reduce discoloration

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JP2015516029A true JP2015516029A (ja) 2015-06-04
JP2015516029A5 JP2015516029A5 (enExample) 2016-06-23

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US (1) US20150141581A1 (enExample)
EP (1) EP2847239A1 (enExample)
JP (1) JP2015516029A (enExample)
CN (1) CN104395357A (enExample)
WO (1) WO2013169581A1 (enExample)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015516026A (ja) * 2012-05-09 2015-06-04 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニーＥ．Ｉ．Ｄｕ Ｐｏｎｔ Ｄｅ Ｎｅｍｏｕｒｓ Ａｎｄ Ｃｏｍｐａｎｙ 変色を低減させるための溶融押出し成形および酸素源への曝露を利用するフッ素化ポリマー樹脂処理
WO2019131633A1 (ja) * 2017-12-25 2019-07-04 ダイキン工業株式会社 ポリテトラフルオロエチレン粉末の製造方法
WO2020158940A1 (ja) 2019-02-01 2020-08-06 ダイキン工業株式会社 ポリテトラフルオロエチレンの製造方法
WO2020213691A1 (ja) 2019-04-16 2020-10-22 ダイキン工業株式会社 フルオロポリマー粉末の製造方法
WO2022181847A1 (ja) * 2021-02-26 2022-09-01 ダイキン工業株式会社 含フッ素共重合体
WO2023277139A1 (ja) * 2021-06-30 2023-01-05 ダイキン工業株式会社 フルオロポリマー組成物の製造方法およびフルオロポリマー組成物
WO2023054723A1 (ja) 2021-09-30 2023-04-06 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
WO2024154804A1 (ja) 2023-01-18 2024-07-25 ダイキン工業株式会社 ポリテトラフルオロエチレン組成物
WO2024172081A1 (ja) * 2023-02-16 2024-08-22 ダイキン工業株式会社 フルオロポリマー水性分散液の製造方法およびフルオロポリマー水性分散液
WO2025116036A1 (ja) * 2023-12-01 2025-06-05 ダイキン工業株式会社 非溶融加工性ポリテトラフルオロエチレン粉末の製造方法および非溶融加工性ポリテトラフルオロエチレン粉末

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107880202A (zh) * 2016-09-30 2018-04-06 中昊晨光化工研究院有限公司 一种模压用聚全氟乙丙烯树脂及其制备方法
CN112638957A (zh) 2018-07-23 2021-04-09 大金工业株式会社 聚四氟乙烯和拉伸体
JP7104354B2 (ja) 2019-02-07 2022-07-21 ダイキン工業株式会社 組成物、延伸体及びその製造方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4538906B1 (enExample) * 1967-12-27 1970-12-08 Daikin Ind Ltd
US3700627A (en) * 1970-05-25 1972-10-24 Pennwalt Corp Decolorized polytetrafluoroethylene
JPH11181098A (ja) * 1997-12-25 1999-07-06 Daikin Ind Ltd 含フッ素重合体の改質方法
JP2000198813A (ja) * 1998-11-04 2000-07-18 Daikin Ind Ltd 含フッ素重合体の安定化方法
JP2001048922A (ja) * 1999-08-13 2001-02-20 Daikin Ind Ltd 安定な変性ポリテトラフルオロエチレン成形用樹脂粉末およびその製造方法
JP2003082106A (ja) * 2001-09-11 2003-03-19 Daikin Ind Ltd 再生含フッ素重合体の製造方法、およびペレット
WO2005033150A1 (ja) * 2003-10-01 2005-04-14 Daikin Industries, Ltd. 含フッ素重合体組成物製造方法及び含フッ素重合体組成物
WO2009014138A1 (ja) * 2007-07-24 2009-01-29 Daikin Industries, Ltd. 精製含フッ素ポリマーの製造方法

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1140964A (fr) * 1956-01-04 1957-08-22 Pechiney Perfectionnement aux polymères d'oléfines fluorées et chlorofluorées
US3282875A (en) 1964-07-22 1966-11-01 Du Pont Fluorocarbon vinyl ether polymers
US3391099A (en) 1966-04-25 1968-07-02 Du Pont Polymerization process
US4036802A (en) 1975-09-24 1977-07-19 E. I. Du Pont De Nemours And Company Tetrafluoroethylene copolymer fine powder resin
US4358545A (en) 1980-06-11 1982-11-09 The Dow Chemical Company Sulfonic acid electrolytic cell having flourinated polymer membrane with hydration product less than 22,000
US4552631A (en) 1983-03-10 1985-11-12 E. I. Du Pont De Nemours And Company Reinforced membrane, electrochemical cell and electrolysis process
US4626587A (en) 1984-01-16 1986-12-02 E. I. Du Pont De Nemours And Company Extrusion finishing of perfluorinated copolymers
US4743658A (en) 1985-10-21 1988-05-10 E. I. Du Pont De Nemours And Company Stable tetrafluoroethylene copolymers
US4675380A (en) 1985-10-25 1987-06-23 E. I. Du Pont De Nemours And Company Melt-processible tetrafluoroethylene/perfluoroolefin copolymer granules and processes for preparing them
US4940525A (en) 1987-05-08 1990-07-10 The Dow Chemical Company Low equivalent weight sulfonic fluoropolymers
US5391709A (en) 1993-11-17 1995-02-21 E. I. Du Pont De Nemours And Company Purification process of PTFE using fiber bed and heated air
US5637748A (en) 1995-03-01 1997-06-10 E. I. Du Pont De Nemours And Company Process for synthesizing fluorinated nitrile compounds
US5703185A (en) 1995-08-17 1997-12-30 E. I. Du Pont De Nemours And Company Fluoropolymer extrusion process
US5859086A (en) * 1996-08-07 1999-01-12 Competitive Technologies Of Pa, Inc. Light directed modification fluoropolymers
US6664337B2 (en) * 1996-09-09 2003-12-16 Daikin Industries, Ltd. Method for stabilizing fluorine-containing polymer
US5969067A (en) 1996-09-13 1999-10-19 E.I. Dupont De Nemours And Company Phosphorus-containing fluoromonomers and polymers thereof
US5866711A (en) 1996-09-13 1999-02-02 E. I. Du Pont De Nemours And Company Fluorocyanate and fluorocarbamate monomers and polymers thereof
FR2842203A1 (fr) * 2002-07-12 2004-01-16 Atofina Procede de fabrication du polymere du fluorure de vinylidene
US6838545B2 (en) 2002-11-08 2005-01-04 E. I. Du Pont De Nemours And Company Reaction of fluoropolymer melts
JP5232653B2 (ja) 2005-11-18 2013-07-10 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー コア／シェルポリマー
US9175112B2 (en) * 2012-05-09 2015-11-03 The Chemours Company Fc, Llc Drying wet fluoropolymer resin and exposing to oxygen source to reduce discoloration

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4538906B1 (enExample) * 1967-12-27 1970-12-08 Daikin Ind Ltd
US3700627A (en) * 1970-05-25 1972-10-24 Pennwalt Corp Decolorized polytetrafluoroethylene
JPH11181098A (ja) * 1997-12-25 1999-07-06 Daikin Ind Ltd 含フッ素重合体の改質方法
JP2000198813A (ja) * 1998-11-04 2000-07-18 Daikin Ind Ltd 含フッ素重合体の安定化方法
JP2001048922A (ja) * 1999-08-13 2001-02-20 Daikin Ind Ltd 安定な変性ポリテトラフルオロエチレン成形用樹脂粉末およびその製造方法
WO2001012682A1 (en) * 1999-08-13 2001-02-22 Daikin Industries, Ltd. Stable molding powder of modified polytetrafluoroethylene resin and process for producing the same
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