DE3763081D1 - Herstellung feinpulveriger tetrafluoraethylenharze. - Google Patents

Herstellung feinpulveriger tetrafluoraethylenharze.

Info

Publication number
DE3763081D1
DE3763081D1 DE8787300632T DE3763081T DE3763081D1 DE 3763081 D1 DE3763081 D1 DE 3763081D1 DE 8787300632 T DE8787300632 T DE 8787300632T DE 3763081 T DE3763081 T DE 3763081T DE 3763081 D1 DE3763081 D1 DE 3763081D1
Authority
DE
Germany
Prior art keywords
tetrafluorethylene
resins
production
fine powdered
powdered
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 - Lifetime
Application number
DE8787300632T
Other languages
English (en)
Inventor
Satish Chandra Malhotra
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of DE3763081D1 publication Critical patent/DE3763081D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S526/915—Redox catalyst
DE8787300632T 1986-01-27 1987-01-26 Herstellung feinpulveriger tetrafluoraethylenharze. Expired - Lifetime DE3763081D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/823,065 US4748217A (en) 1986-01-27 1986-01-27 Preparation of tetrafluoroethylene fine powder

Publications (1)

Publication Number Publication Date
DE3763081D1 true DE3763081D1 (de) 1990-07-12

Family

ID=25237696

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787300632T Expired - Lifetime DE3763081D1 (de) 1986-01-27 1987-01-26 Herstellung feinpulveriger tetrafluoraethylenharze.

Country Status (4)

Country Link
US (1) US4748217A (de)
EP (1) EP0239192B1 (de)
JP (1) JPS62190206A (de)
DE (1) DE3763081D1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8628291D0 (en) * 1986-11-26 1986-12-31 Ici Plc Tetrafluoroethylene polymers
US5012274A (en) * 1987-12-31 1991-04-30 Eugene Dolgoff Active matrix LCD image projection system
US4908410A (en) * 1989-01-27 1990-03-13 E. I. Du Pont De Nemours And Company Modified polytetrafluoroethylene fine powder and preparation thereof
WO1992021715A1 (en) * 1991-06-04 1992-12-10 Donaldson Company, Inc. Fluid treated polytetrafluoroethylene products and their manufacture
WO1993004097A1 (en) * 1991-08-23 1993-03-04 Exxon Chemical Patents, Inc. Adhesive acrylic copolymers with a broad molecular weight distribution
DE4332712A1 (de) * 1993-09-25 1995-03-30 Hoechst Ag Verfahren zur Herstellung eines modifizierten Polytetrafluorethylens und seine Verwendung
US5955556A (en) 1995-11-06 1999-09-21 Alliedsignal Inc. Method of manufacturing fluoropolymers
US6136933A (en) * 1998-11-13 2000-10-24 E. I. Du Pont De Nemours And Company Process for polymerizing tetrafluoroethylene
US6177533B1 (en) 1998-11-13 2001-01-23 E. I. Du Pont De Nemours And Company Polytetrafluoroethylene resin
JP4042390B2 (ja) * 2001-03-26 2008-02-06 旭硝子株式会社 強度に優れるテトラフルオロエチレン重合体の製造方法
US6803435B2 (en) * 2002-07-18 2004-10-12 3M Innovative Properties Company Curable fluoropolymers containing bromine groups having improved compression set
CN101245118B (zh) * 2007-02-16 2011-10-05 大金工业株式会社 聚四氟乙烯细粉及聚四氟乙烯的制造方法
EP2840115B1 (de) 2012-04-20 2018-06-06 Daikin Industries, Ltd. Zusammensetzung weitgehend auf basis von ptfe, mischpulver, formmasse, filtermedium für filter, luftfiltereinheit und verfahren zur herstellung einer porösen membran
US10245545B2 (en) 2013-10-23 2019-04-02 Daikin Industries, Ltd. Embossed air filter filtration medium, filter pack, air filter unit, and method for manufacturing filtration medium for embossed air filter
JP6673230B2 (ja) 2017-01-12 2020-03-25 ダイキン工業株式会社 エアフィルタ濾材
JP6962368B2 (ja) * 2017-06-02 2021-11-05 Ａｇｃ株式会社 変性ポリテトラフルオロエチレンおよびその製造方法
JP6816746B2 (ja) 2018-07-20 2021-01-20 ダイキン工業株式会社 エアフィルタ濾材、フィルタパック、およびエアフィルタユニット
JP7227507B2 (ja) 2018-09-28 2023-02-22 ダイキン工業株式会社 エアフィルタ濾材、フィルタパック、エアフィルタユニット、およびこれらの製造方法
JP7181480B2 (ja) 2021-02-04 2022-12-01 ダイキン工業株式会社 エアフィルタ濾材、エアフィルタ濾材の製造方法、マスク用濾材、および、プリーツ状マスク用濾材
KR20240016337A (ko) 2021-06-04 2024-02-06 다이킨 고교 가부시키가이샤 에어 필터 여과재, 플리트상 여과재, 에어 필터 유닛, 마스크용 여과재, 및 에어 필터 여과재의 재생 방법

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US31341A (en) * 1861-02-05 Improvement in rotary harrows
US2560694A (en) * 1950-07-15 1951-07-17 Du Pont Bromate ion-sulfoxy compound catalyst system in aqueous polymerization process
FR1155143A (fr) * 1956-06-12 1958-04-23 Electro Chimie Soc D Procédé de polymérisation des oléfines fluorées
US3032543A (en) * 1959-02-04 1962-05-01 Du Pont Polymerization of tetrafluoroethylene
JPS5360979A (en) 1976-11-11 1978-05-31 Daikin Ind Ltd Polytetrafluoroethylene fine powder and its preparation
US4342675A (en) * 1978-06-16 1982-08-03 E. I. Du Pont De Nemours And Company Process for preparing aqueous dispersion of polytetrafluoroethylene
FR2491477A1 (fr) * 1979-12-21 1982-04-09 Ugine Kuhlmann Procede de polymerisation du tetrafluorethylene en dispersion aqueuse
US4463144A (en) * 1980-09-10 1984-07-31 Asahi Glass Company Ltd. Process for producing propylene-tetrafluoroethylene copolymer
US4530981A (en) * 1984-08-13 1985-07-23 E. I. Du Pont De Nemours And Company Process for making tetrafluoroethylene fine powder
US4654406A (en) * 1985-09-09 1987-03-31 E. I. Du Pont De Nemours And Company Preparation of tetrafluoroethylene fine powder

Also Published As

Publication number Publication date
EP0239192A1 (de) 1987-09-30
JPS62190206A (ja) 1987-08-20
JPS643885B2 (de) 1989-01-24
US4748217A (en) 1988-05-31
EP0239192B1 (de) 1990-06-06

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Legal Events

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8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee