GB1354471A - Tetrafluoroethylene polymers - Google Patents

Tetrafluoroethylene polymers

Info

Publication number
GB1354471A
GB1354471A GB1354471DA GB1354471A GB 1354471 A GB1354471 A GB 1354471A GB 1354471D A GB1354471D A GB 1354471DA GB 1354471 A GB1354471 A GB 1354471A
Authority
GB
United Kingdom
Prior art keywords
tetrafluoroethylene
rads
weight
coagulated dispersion
tetrafluoroethylene polymer
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
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical 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
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of GB1354471A publication Critical patent/GB1354471A/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
    • C08J3/28—Treatment by wave energy or particle radiation
    • 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)
  • Graft Or Block Polymers (AREA)

Abstract

1354471 Irradiating tetrafluoroethylene polymers IMPERIAL CHEMICAL INDUSTRIES Ltd 3 May 1971 [3 Feb 1970] 5037/70 Heading C3P A tetrafluoroethylene polymer is converted into a form that is capable of being communicated to a median number average particle size of less than 5 Ám as measured optically by subjecting an unsintered coagulated dispersion grade of a tetrafluoroethylene polymer selected from homopolymers of tetrafluoroethylene and copolymers of tetrafluoroethylene with up to 10% by weight, based on the weight of the copolymer of an ethylenically unsaturated comonomer, in powder form to γ-radiation until it has received a dose of at least 2 M Rads. In the Examples coagulated dispersion and milled granular PTFE powders are subjected to doses of 5 M Rads of γ-irradiation and comminuted in a light oil using bead milling or equivalent liquid dispersions techniques or in a fluid energy mill.
GB1354471D 1970-02-03 1970-02-03 Tetrafluoroethylene polymers Expired GB1354471A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB503770 1970-02-03

Publications (1)

Publication Number Publication Date
GB1354471A true GB1354471A (en) 1974-06-05

Family

ID=9788564

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1354471D Expired GB1354471A (en) 1970-02-03 1970-02-03 Tetrafluoroethylene polymers

Country Status (1)

Country Link
GB (1) GB1354471A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138524A1 (en) * 1983-10-07 1985-04-24 RAYCHEM CORPORATION (a Delaware corporation) Melt-shapable fluoropolymer compositions
US4624990A (en) * 1983-10-07 1986-11-25 Raychem Corporation Melt-shapeable fluoropolymer compositions
US4859836A (en) * 1983-10-07 1989-08-22 Raychem Corporation Melt-shapeable fluoropolymer compositions
US7056578B2 (en) 2002-11-13 2006-06-06 Eastman Kodak Company Layer comprising nonfibrillatable and autoadhesive plastic particles, and method of preparation
US7195853B1 (en) 2002-11-13 2007-03-27 Eastman Kodak Company Process for electrostatographic reproduction
US8092359B1 (en) 2002-11-13 2012-01-10 Eastman Kodak Company Fuser member and fuser member surface layer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138524A1 (en) * 1983-10-07 1985-04-24 RAYCHEM CORPORATION (a Delaware corporation) Melt-shapable fluoropolymer compositions
US4624990A (en) * 1983-10-07 1986-11-25 Raychem Corporation Melt-shapeable fluoropolymer compositions
US4859836A (en) * 1983-10-07 1989-08-22 Raychem Corporation Melt-shapeable fluoropolymer compositions
US7056578B2 (en) 2002-11-13 2006-06-06 Eastman Kodak Company Layer comprising nonfibrillatable and autoadhesive plastic particles, and method of preparation
US7195853B1 (en) 2002-11-13 2007-03-27 Eastman Kodak Company Process for electrostatographic reproduction
US8092359B1 (en) 2002-11-13 2012-01-10 Eastman Kodak Company Fuser member and fuser member surface layer

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee