ATE217017T1 - Verfahren zur herstellung von rieselfähigen polytetrafluorethylen-formpulvern - Google Patents

Verfahren zur herstellung von rieselfähigen polytetrafluorethylen-formpulvern

Info

Publication number: ATE217017T1
Authority: AT; Austria
Prior art keywords: polytetrafluorethylene; flowing; producing free; molded powders; powders
Prior art date: 1994-12-21

Application number

AT95944639T

Other languages

English (en)

Inventor

Leonard William Harvey

Eric Nathaniel Martin

Original Assignee

Asahi Glass Fluoropolymers Usa

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.)

1994-12-21

Filing date

1995-12-13

Publication date

2002-05-15

1995-12-13 Application filed by Asahi Glass Fluoropolymers Usa filed Critical Asahi Glass Fluoropolymers Usa

2002-05-15 Application granted granted Critical

2002-05-15 Publication of ATE217017T1 publication Critical patent/ATE217017T1/de

Links

-1 POLYTETRAFLUORETHYLENE Polymers 0.000 title abstract 3
239000000843 powder Substances 0.000 title abstract 3
238000004519 manufacturing process Methods 0.000 title abstract 2
229920001343 polytetrafluoroethylene Polymers 0.000 title 1
BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract 3
LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 2
DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 abstract 2
229920000642 polymer Polymers 0.000 abstract 2
239000007864 aqueous solution Substances 0.000 abstract 1
150000002009 diols Chemical class 0.000 abstract 1
150000004072 triols Chemical class 0.000 abstract 1
239000000080 wetting agent Substances 0.000 abstract 1

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
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/06—Ethers; Acetals; Ketals; Ortho-esters
- 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)
Processes Of Treating Macromolecular Substances (AREA)
Compositions Of Macromolecular Compounds (AREA)
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

AT95944639T 1994-12-21 1995-12-13 Verfahren zur herstellung von rieselfähigen polytetrafluorethylen-formpulvern ATE217017T1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US08/362,378 US5502161A (en)	1994-12-21	1994-12-21	Method for the production of free-flowing tetrafluoroethylene polymer molding powders
PCT/US1995/016671 WO1996020241A2 (en)	1994-12-21	1995-12-13	Method for the production of free-flowing tetrafluoroethylene polymer molding powders

Publications (1)

Publication Number	Publication Date
ATE217017T1 true ATE217017T1 (de)	2002-05-15

Family

ID=23425875

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT95944639T ATE217017T1 (de)	1994-12-21	1995-12-13	Verfahren zur herstellung von rieselfähigen polytetrafluorethylen-formpulvern

Country Status (10)

Country	Link
US (1)	US5502161A (de)
EP (1)	EP0799273B1 (de)
JP (1)	JP3495736B2 (de)
AT (1)	ATE217017T1 (de)
CA (1)	CA2208242C (de)
DE (1)	DE69526591T2 (de)
DK (1)	DK0799273T3 (de)
ES (1)	ES2176362T3 (de)
PT (1)	PT799273E (de)
WO (1)	WO1996020241A2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6911489B2 (en) *	2002-06-10	2005-06-28	Asahi Glass Fluoropolymers Usa, Inc.	Methods for preparing agglomerated pellets of polytetrafluoroethylene and molded articles and the agglomerated pellets of polytetrafluoroethylene and molded articles prepared thereby
DE102011078766B4 (de) *	2011-07-06	2017-02-02	Leibniz-Institut Für Polymerforschung Dresden E.V.	Verfahren zur verarbeitung von ptfe

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3244687A (en) *	1956-05-24	1966-04-05	Coathylene Sa	Process for the production of dry, finely divided and fusible polyethylene powders
GB1100388A (en) *	1964-05-18	1968-01-24	Daikin Ind Ltd	Polytetrafluoroethylene powder and method of preparation thereof
US3527857A (en) *	1965-10-26	1970-09-08	Hoechst Ag	Process for preparing polytetrafluoroethylene-containing powder
DE1679830C3 (de) *	1965-12-30	1974-01-10	Farbwerke Hoechst Ag, Vormals Meister Lucius & Bruening, 6000 Frankfurt	Verfahren zur Herstellung eines Granulats aus pulvrigem Polytetrafluoräthylen
US3597405A (en) *	1966-04-21	1971-08-03	Daikin Ind Ltd	Polytertrafluoroethylene powder and method for making the same
US3781258A (en) *	1968-09-11	1973-12-25	Daikin Ind Ltd	Polytetrafluoroethylene powder and method of preparation thereof
DE1814869C3 (de) *	1968-12-16	1974-07-18	Farbwerke Hoechst Ag, Vorm. Meister Lucius & Bruening, 6230 Frankfurt	Wäßrige Paste zur Herstellung von elektrischen Widerständen
US3682859A (en) *	1969-06-20	1972-08-08	Liquid Nitrogen Processing	Free-flowing tetrafluoroethylene polymer composition and process of producing the same
US3882217A (en) *	1970-12-11	1975-05-06	Ici Ltd	Method for the production of free-flowing polytetrafluoroethylene molding powders
US3983200A (en) *	1970-12-11	1976-09-28	Imperial Chemical Industries Limited	Method for the production of polytetrafluoroethylene moulding powders
DE2132680A1 (de) *	1971-07-01	1973-01-18	Glasforskningsinstitutet	Verfahren zur herstellung von pelletisierten glasgemengen
US4143110A (en) *	1977-07-08	1979-03-06	Asahi Glass Company Ltd.	Method of agglomerating polytetrafluoroethylene powder
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"
DE3941368A1 (de) *	1989-12-15	1991-06-20	Hoechst Ag	Verfahren zur herstellung eines agglomerierten formpulvers aus polytetrafluorethylen und hydrophoben fuellstoffen

1994
- 1994-12-21 US US08/362,378 patent/US5502161A/en not_active Expired - Lifetime
1995
- 1995-12-13 JP JP52051896A patent/JP3495736B2/ja not_active Expired - Fee Related
- 1995-12-13 ES ES95944639T patent/ES2176362T3/es not_active Expired - Lifetime
- 1995-12-13 DK DK95944639T patent/DK0799273T3/da active
- 1995-12-13 EP EP95944639A patent/EP0799273B1/de not_active Expired - Lifetime
- 1995-12-13 WO PCT/US1995/016671 patent/WO1996020241A2/en not_active Ceased
- 1995-12-13 DE DE69526591T patent/DE69526591T2/de not_active Expired - Lifetime
- 1995-12-13 CA CA002208242A patent/CA2208242C/en not_active Expired - Fee Related
- 1995-12-13 PT PT95944639T patent/PT799273E/pt unknown
- 1995-12-13 AT AT95944639T patent/ATE217017T1/de not_active IP Right Cessation

Also Published As

Publication number	Publication date
CA2208242A1 (en)	1996-07-04
PT799273E (pt)	2002-10-31
EP0799273B1 (de)	2002-05-02
DK0799273T3 (da)	2002-07-29
ES2176362T3 (es)	2002-12-01
MX9704635A (es)	1997-09-30
EP0799273A2 (de)	1997-10-08
US5502161A (en)	1996-03-26
CA2208242C (en)	2005-06-14
WO1996020241A3 (en)	1996-09-06
JP3495736B2 (ja)	2004-02-09
DE69526591D1 (de)	2002-06-06
DE69526591T2 (de)	2002-12-05
WO1996020241A2 (en)	1996-07-04
JPH10511723A (ja)	1998-11-10

Legal Events

Date	Code	Title	Description
2002-10-15	UEP	Publication of translation of european patent specification
2006-09-15	REN	Ceased due to non-payment of the annual fee

Publication	Publication Date	Title
EP0380120A3 (de)	1991-08-28	Feinpulveriges modifiziertes Polytetrafluorethen und seine Herstellung
EP0754737A3 (de)	1997-01-29
JPS5750822B2 (de)	1982-10-29
ATA81389A (de)	1990-04-15	Monoaxial verstreckter formkoerper aus polytetrafluoraethylen und verfahren zu seiner herstellung
MY131961A (en)	2007-09-28	Resin composition, heat-resistant resin paste and semiconductor device using them and method for manufacture thereof
ATE88983T1 (de)	1993-05-15	Verfahren zur herstellung von monodispersen keramischen pulvern.
DE59010669D1 (de)	1997-04-17	Verfahren zur Herstellung eines agglomerierten Formpulvers aus Polytetrafluorethylen und hydrophoben Füllstoffen
JPS54137064A (en)	1979-10-24	Manufacture of porous membrane
DE69507904D1 (de)	1999-03-25	Verfahren zur herstellung von wässrigen beschichtungszusammensetzungen aus thermoplastischen polyhydroxyetherharzen mit enger polydispersität
DE69526591D1 (de)	2002-06-06	Verfahren zur herstellung von rieselfähigen polytetrafluorethylen-formpulvern
JPS51136735A (en)	1976-11-26	Thermoplastic resin com position
DE59505621D1 (de)	1999-05-20	Verfahren zur Herstellung von Fasern aus Zellulose
EP0826723A3 (de)	1998-05-13	Silikongummischaumstoffzusammensetzung und Herstellungsverfahren dafür
ATE9915T1 (de)	1984-11-15	Verfahren zur reproduzierbaren herstellung von formteilchen unterschiedlicher geometrie aus polymerdispersionen, schmelzen oder loesungen.
JPS5738823A (en)	1982-03-03	Ion-exchange membrane and its production
NO168656C (no)	1992-03-18	Fremgangsmaate for fremstilling av ikke-sigende for-impregnerte materialer paa fenolharpiksbasis
ATE26289T1 (de)	1987-04-15	Verfahren zur herstellung eines kunststoffes.
DE59502835D1 (de)	1998-08-20	Thermoplastische formmassen mit guter beschriftbarkeit
DE58901526D1 (de)	1992-07-02	Verfahren zur ionischen vernetzung eines ethylencopolymerisats.
JPS56109727A (en)	1981-08-31	Flexible tube and manufacture thereof
JPS5216564A (en)	1977-02-07	Foaming silicone rubber composition
JPS5426827A (en)	1979-02-28	Antifouling coating composition
JPS57211118A (en)	1982-12-24	Spectacle frame made of plastic
SE8405898D0 (sv)	1984-11-22	Forfarande vid framstellning av tonerpartiklar for reprografiska endamal
GB2100735B (en)	1985-01-23	Perfluoroketovinyl ethers and copolymers therefrom