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MX2023006149A - Metodo para la produccion de micropolvos de fluoropolimero con pfas/pfoa reducidos. - Google Patents

Metodo para la produccion de micropolvos de fluoropolimero con pfas/pfoa reducidos.

Info

Publication number
MX2023006149A
MX2023006149A MX2023006149A MX2023006149A MX2023006149A MX 2023006149 A MX2023006149 A MX 2023006149A MX 2023006149 A MX2023006149 A MX 2023006149A MX 2023006149 A MX2023006149 A MX 2023006149A MX 2023006149 A MX2023006149 A MX 2023006149A
Authority
MX
Mexico
Prior art keywords
sup
fluoropolymer
pfas
pfoa
production
Prior art date
Application number
MX2023006149A
Other languages
English (en)
Inventor
Jr James W Downing
Kurt L Mecray
Michael J Haley
Original Assignee
Ppg Ind Ohio Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ppg Ind Ohio Inc filed Critical Ppg Ind Ohio Inc
Publication of MX2023006149A publication Critical patent/MX2023006149A/es

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
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/26—Treatment of polymers prepared in bulk also solid polymers or polymer melts
    • 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
    • C08F6/26—Treatment of polymers prepared in bulk also solid polymers or polymer melts
    • C08F6/28—Purification
    • 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
    • C08F8/50—Partial depolymerisation
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/08—Heat treatment
    • 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
    • C08J2327/14—Homopolymers or copolymers of vinyl fluoride
    • 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)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Polyethers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Un método de elaboración de micropolvos de fluoropolímero con bajo contenido de especies perfluoroalquilantes (PFAS), tal como ácido perfluorooctanoico (PFOA). El método incluye aplicar un tratamiento térmico, a una temperatura de 125°C a 300°C en una atmósfera sustancialmente libre de oxígeno y/o en un reactor de lecho fluidizado, a un fluoropolímero perfluorado irradiado o degradado térmicamente. El método también puede incluir micronizar el intermediario del fluoropolímero de peso molecular bajo tratado térmicamente para proporcionar un micropolvo.
MX2023006149A 2020-11-25 2021-11-24 Metodo para la produccion de micropolvos de fluoropolimero con pfas/pfoa reducidos. MX2023006149A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202063118179P 2020-11-25 2020-11-25
PCT/US2021/060863 WO2022115634A1 (en) 2020-11-25 2021-11-24 Method for production of fluoropolymer micropowders with reduced pfas/pfoa

Publications (1)

Publication Number Publication Date
MX2023006149A true MX2023006149A (es) 2023-06-07

Family

ID=79730388

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2023006149A MX2023006149A (es) 2020-11-25 2021-11-24 Metodo para la produccion de micropolvos de fluoropolimero con pfas/pfoa reducidos.

Country Status (5)

Country Link
US (1) US20240010801A1 (es)
EP (1) EP4251678A1 (es)
CN (1) CN116457395A (es)
MX (1) MX2023006149A (es)
WO (1) WO2022115634A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115926247A (zh) * 2023-02-07 2023-04-07 江苏天问新材料科技有限公司 一种环境友好型低分子量氟聚物的制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019156071A1 (ja) * 2018-02-07 2019-08-15 ダイキン工業株式会社 低分子量ポリテトラフルオロエチレンを含む組成物の製造方法
US11014999B2 (en) * 2018-04-24 2021-05-25 Inhance Technologies, LLC Systems and methods for processing fluoropolymer materials and related workpieces
WO2020013336A1 (ja) * 2018-07-13 2020-01-16 国立大学法人大阪大学 低分子量ポリテトラフルオロエチレンの製造方法

Also Published As

Publication number Publication date
CN116457395A (zh) 2023-07-18
EP4251678A1 (en) 2023-10-04
WO2022115634A1 (en) 2022-06-02
US20240010801A1 (en) 2024-01-11

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