GB1327159A - Manufacture of tetrafluoroethylene polymer powder - Google Patents

Manufacture of tetrafluoroethylene polymer powder

Info

Publication number
GB1327159A
GB1327159A GB560372A GB560372A GB1327159A GB 1327159 A GB1327159 A GB 1327159A GB 560372 A GB560372 A GB 560372A GB 560372 A GB560372 A GB 560372A GB 1327159 A GB1327159 A GB 1327159A
Authority
GB
United Kingdom
Prior art keywords
tetrafluoroethylene polymer
freeze
latex
polymer powder
manufacture
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
Application number
GB560372A
Other languages
English (en)
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.)
Pennwalt Corp
Original Assignee
Pennwalt Corp
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 Pennwalt Corp filed Critical Pennwalt Corp
Publication of GB1327159A publication Critical patent/GB1327159A/en
Expired 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
    • C08J3/16—Powdering or granulating by coagulating dispersions
    • 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)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
GB560372A 1971-02-23 1972-02-07 Manufacture of tetrafluoroethylene polymer powder Expired GB1327159A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11815871A 1971-02-23 1971-02-23

Publications (1)

Publication Number Publication Date
GB1327159A true GB1327159A (en) 1973-08-15

Family

ID=22376824

Family Applications (1)

Application Number Title Priority Date Filing Date
GB560372A Expired GB1327159A (en) 1971-02-23 1972-02-07 Manufacture of tetrafluoroethylene polymer powder

Country Status (7)

Country Link
US (1) US3692759A (enExample)
CA (1) CA943697A (enExample)
DE (1) DE2208077A1 (enExample)
FR (1) FR2127658A5 (enExample)
GB (1) GB1327159A (enExample)
IT (1) IT947765B (enExample)
NL (1) NL7202338A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2451096A (en) * 2007-07-17 2009-01-21 Whitford Plastics Ltd Method of preparing a powdered fluoropolymer blend

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276334A (en) * 1974-01-31 1981-06-30 General Company Limited Pressure sensitive recording sheet
JPS57135405A (en) 1981-02-17 1982-08-21 Tadahisa Sakamoto Manufacture of surface material of record disk bearing photograph or illustration
US4576869A (en) * 1984-06-18 1986-03-18 E. I. Du Pont De Nemours And Company Tetrafluoroethylene fine powder and preparation thereof
US4917834A (en) * 1988-11-16 1990-04-17 General Technology Applications, Inc. Method for forming homogeneous blends of particulate materials
US5185414A (en) * 1991-01-18 1993-02-09 Ici Americas Inc. Drying temperature independent polytetrafluoroethylene
US5256744A (en) * 1991-01-18 1993-10-26 Ici Americas Inc. Drying temperature independent polytetrafluoroethylene
JP3303408B2 (ja) * 1992-07-09 2002-07-22 ダイキン工業株式会社 含フッ素樹脂複合微粒子
US5543217A (en) * 1995-02-06 1996-08-06 E. I. Du Pont De Nemours And Company Amorphous copolymers of tetrafluoroethylene and hexafluoropropylene
US6720360B1 (en) * 2000-02-01 2004-04-13 3M Innovative Properties Company Ultra-clean fluoropolymers
GB2434152A (en) * 2006-01-16 2007-07-18 Whitford Plastics Ltd Fluoropolymer powdered materials
GB2451097A (en) * 2007-07-17 2009-01-21 Whitford Plastics Ltd Silicon carbide-modified fluoropolymer powders
EP3323853B1 (en) * 2008-05-30 2019-06-26 Whitford Corporation Blended fluoropolymer compositions
TW201016800A (en) 2008-09-26 2010-05-01 Whitford Corp Blended fluoropolymer coatings for rigid substrates
US8404309B2 (en) * 2008-09-26 2013-03-26 Whitford Corporation Blended fluoropolymer compositions and coatings for flexible substrates
US20100092759A1 (en) * 2008-10-13 2010-04-15 Hua Fan Fluoropolymer/particulate filled protective sheet

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464964A (en) * 1966-06-13 1969-09-02 Pennsalt Chemicals Corp Coagulation of polytetrafluoroethylene latex

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2451096A (en) * 2007-07-17 2009-01-21 Whitford Plastics Ltd Method of preparing a powdered fluoropolymer blend
US8053549B2 (en) 2007-07-17 2011-11-08 Whitford Plastics Limited Method for the preparation of fluoropolymer powdered materials

Also Published As

Publication number Publication date
US3692759A (en) 1972-09-19
DE2208077A1 (de) 1972-09-07
FR2127658A5 (enExample) 1972-10-13
CA943697A (en) 1974-03-12
IT947765B (it) 1973-05-30
NL7202338A (enExample) 1972-08-25

Similar Documents

Publication Publication Date Title
GB1327159A (en) Manufacture of tetrafluoroethylene polymer powder
GB1514228A (en) Universal joint and method of manufacture
GB1528218A (en) Shaft seals
GB1330668A (en) Bearing seals
GB1294300A (en) Bidirectional hydrodynamic shaft seal
GB1516724A (en) Bulk polymerization process
ES432607A1 (es) Procedimiento para la produccion de copolimeros de monome- ros hidrofobicos e hidrofilicos.
GB756460A (en) Improvements in or relating to sealing rings for use between relatively movable members
GB1408300A (en) Process for the polymerisation of tetrafluoroethylene and polytetrafluoroethylene powders obtained by this process
GB492998A (en) Improvements in the manufacture and production of vulcanisable mixtures of organic film-forming substances
GB602746A (en) Improvements in oil and like seals
IE34509B1 (en) Polymer latices
GB1327323A (en) Preparation of polytetrafluoroethylene of high apparent bulk density
GB1177897A (en) A Process for the Production of Sulphur-modified Polychloroprenes
CA931692A (en) Stereospecific synthetic rubber based on 1,3-butadiene and method of producing same
UST101402I4 (en) Process of paste extrusion
GB1198898A (en) Binder Particles
JPS5334848A (en) Fluorine-containing elastomer composition of high tear strength and its production
GB1192407A (en) Improvements in or relating to the Coagulation of Natural Latex with Anionic Surfactants
GB1346923A (en) Sulphur modified polychloroprene
GB1382314A (en) Polychloroprene
GB963075A (en) Preparing and treating chloroprene polymers
GB1436482A (en) Chloroprene polymers
GB1404677A (en) Mixture of polytetrafluoroethylene and fillers and the pre paration thereof
CA922048A (en) Coagulation of aqueous polymeric dispersions

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees