DE69111673D1 - Verfahren zur Herstellung von körnigem Polytetrafluoroethylenpulver. - Google Patents

Verfahren zur Herstellung von körnigem Polytetrafluoroethylenpulver.

Info

Publication number
DE69111673D1
DE69111673D1 DE69111673T DE69111673T DE69111673D1 DE 69111673 D1 DE69111673 D1 DE 69111673D1 DE 69111673 T DE69111673 T DE 69111673T DE 69111673 T DE69111673 T DE 69111673T DE 69111673 D1 DE69111673 D1 DE 69111673D1
Authority
DE
Germany
Prior art keywords
production
polytetrafluoroethylene powder
granular polytetrafluoroethylene
granular
powder
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 - Fee Related
Application number
DE69111673T
Other languages
English (en)
Other versions
DE69111673T2 (de
Inventor
Norimasa Honda
Kazuhide Sawada
Kenjiro Idemori
Hirokazu Yukawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26454637&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69111673(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP11626590A external-priority patent/JP2909918B2/ja
Priority claimed from JP12461590A external-priority patent/JP2952958B2/ja
Application filed by Daikin Industries Ltd filed Critical Daikin Industries Ltd
Application granted granted Critical
Publication of DE69111673D1 publication Critical patent/DE69111673D1/de
Publication of DE69111673T2 publication Critical patent/DE69111673T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
DE69111673T 1990-05-01 1991-04-30 Verfahren zur Herstellung von körnigem Polytetrafluoroethylenpulver. Expired - Fee Related DE69111673T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11626590A JP2909918B2 (ja) 1990-05-01 1990-05-01 ポリテトラフルオロエチレン造粒粉末の製造法
JP12461590A JP2952958B2 (ja) 1990-05-15 1990-05-15 フィラー入りポリテトラフルオロエチレン造粒粉末の製造法

Publications (2)

Publication Number Publication Date
DE69111673D1 true DE69111673D1 (de) 1995-09-07
DE69111673T2 DE69111673T2 (de) 1996-01-04

Family

ID=26454637

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69111673T Expired - Fee Related DE69111673T2 (de) 1990-05-01 1991-04-30 Verfahren zur Herstellung von körnigem Polytetrafluoroethylenpulver.

Country Status (3)

Country Link
US (1) US5189143A (de)
EP (1) EP0455210B1 (de)
DE (1) DE69111673T2 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4218965A1 (de) * 1992-06-10 1993-12-16 Hoechst Ag Verfahren und Vorrichtung zur Herstellung eines Polymerisates des Tetrafluorethylens in wäßriger Suspension
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
DE69636119T2 (de) * 1995-09-18 2006-11-30 Daikin Industries, Ltd. Gefülltes körniges polytetrafluorethylenpulver und verfahren zur ihrer herstellung
JP3319329B2 (ja) * 1997-03-17 2002-08-26 ダイキン工業株式会社 フィラー入りポリテトラフルオロエチレン粒状粉末およびその製法
JP3666210B2 (ja) * 1997-07-24 2005-06-29 旭硝子株式会社 ポリテトラフルオロエチレン造粒粉末の製造法
JPH11236454A (ja) * 1998-02-24 1999-08-31 Du Pont Mitsui Fluorochem Co Ltd ポリテトラフルオロエチレン造粒粉末の製造方法
DE10042464A1 (de) * 2000-08-29 2002-03-28 Dyneon Gmbh Wärmeabsorbierende Membranen
JP5034150B2 (ja) * 2000-12-05 2012-09-26 旭硝子株式会社 ポリテトラフルオロエチレン造粒物及びその成形品
US20050129845A1 (en) * 2001-08-08 2005-06-16 3M Innovative Properties Company Process for maintaining a desired temperature
CN101899190B (zh) * 2010-06-30 2012-11-21 上海三爱富新材料股份有限公司 聚四氟乙烯粒状粉末的制造方法
CN102604282A (zh) * 2012-03-09 2012-07-25 浙江大学 纳米粒子填充ptfe复合材料的制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1100388A (en) * 1964-05-18 1968-01-24 Daikin Ind Ltd Polytetrafluoroethylene powder and method of preparation thereof
US3781258A (en) * 1968-09-11 1973-12-25 Daikin Ind Ltd Polytetrafluoroethylene powder and method of preparation thereof
US3929721A (en) * 1974-05-24 1975-12-30 Du Pont Process for reducing filler loss in tetrafluoroethylene polymer particles
US3915916A (en) * 1974-05-24 1975-10-28 Du Pont Process for reducing filler loss
US4241137A (en) * 1977-11-22 1980-12-23 Daikin Kogyo Co., Ltd. Process for preparing polytetrafluoroethylene granular powder
JPS6021694B2 (ja) * 1980-07-08 1985-05-29 ダイキン工業株式会社 フイラ−入りポリテトラフルオロエチレン成形粉末の製造方法

Also Published As

Publication number Publication date
EP0455210A1 (de) 1991-11-06
DE69111673T2 (de) 1996-01-04
US5189143A (en) 1993-02-23
EP0455210B1 (de) 1995-08-02

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8339 Ceased/non-payment of the annual fee