GB1527026A - Tetrafluoroethylene polymer and process for producing sam - Google Patents

Tetrafluoroethylene polymer and process for producing sam

Info

Publication number
GB1527026A
GB1527026A GB1808276A GB1808276A GB1527026A GB 1527026 A GB1527026 A GB 1527026A GB 1808276 A GB1808276 A GB 1808276A GB 1808276 A GB1808276 A GB 1808276A GB 1527026 A GB1527026 A GB 1527026A
Authority
GB
United Kingdom
Prior art keywords
per cent
modifier
tetrafluoroethylene polymer
layered
polymer particles
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
GB1808276A
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
Daikin Kogyo Co 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
Priority claimed from JP5643275A external-priority patent/JPS51130494A/en
Priority claimed from JP8260275A external-priority patent/JPS525890A/en
Application filed by Daikin Industries Ltd, Daikin Kogyo Co Ltd filed Critical Daikin Industries Ltd
Publication of GB1527026A publication Critical patent/GB1527026A/en
Expired 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
    • C08F214/00—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
    • C08F214/18—Monomers containing fluorine
    • C08F214/26—Tetrafluoroethene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Graft Or Block Polymers (AREA)

Abstract

1527026 Layered tetrafluoroethylene polymer particles DAIKIN KOGYO KK 4 May 1976 [8 May 1975 3 July 1975] 18082/76 Heading C3P Modified polytetrafluoroethylene in the form of layered particles wherein the modifier is 0À001 to 2 wt. per cent of a comonomer selected from chlorotrifluoroethylene, hexafluoropropylene, or an omega hydroperfluoroolefin of formula CF 2 = CF(CF 2 CF 2 ) n H wherein n is an integer from 1 to 5, is produced by a process wherein at least 50 wt. per cent of the copolymerizable modifier is introduced into the polymerization system after 70 wt. per cent of the polytetrafluoroethylene has been formed, thereby incorporating at least 50 wt. per cent of said modifier in the shell portion of the polymer particles.
GB1808276A 1975-05-08 1976-05-04 Tetrafluoroethylene polymer and process for producing sam Expired GB1527026A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5643275A JPS51130494A (en) 1975-05-08 1975-05-08 Preparation of morified tetrafluoroethyelene
JP8260275A JPS525890A (en) 1975-07-03 1975-07-03 Process for preparing a modified tetrafluoroethylenepolymer

Publications (1)

Publication Number Publication Date
GB1527026A true GB1527026A (en) 1978-10-04

Family

ID=26397378

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1808276A Expired GB1527026A (en) 1975-05-08 1976-05-04 Tetrafluoroethylene polymer and process for producing sam

Country Status (2)

Country Link
DE (2) DE2620284C2 (en)
GB (1) GB1527026A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221554A2 (en) * 1985-11-06 1987-05-13 Daikin Industries, Limited Organosol of particles of a fluorine-containing-copolymer
JP2015520283A (en) * 2012-06-20 2015-07-16 ソルベイ スペシャルティ ポリマーズ イタリー エス．ピー．エー． Tetrafluoroethylene copolymer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2724200C2 (en) * 1977-05-27 1985-06-20 E.I. Du Pont De Nemours And Co., Wilmington, Del. Coagulated tetrafluoroethylene copolymer powder and process for its production

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142665A (en) * 1960-07-26 1964-07-28 Du Pont Novel tetrafluoroethylene resins and their preparation
US3088941A (en) 1960-03-11 1963-05-07 Du Pont Process for the preparation of improved polytetrafluoroethylene extrusion powder
US3331822A (en) * 1963-08-20 1967-07-18 Thiokol Chemical Corp Production of polytetrafluoroethylene molding powders by the aqueous suspension polymerization of tetrafluoroethylene with small amounts of perfluoroolefins containing from 3 to 4 carbon atoms
DE1745252B2 (en) * 1966-05-25 1975-07-31 E.I. Du Pont De Nemours And Co., Wilmington, Del. (V.St.A.) Process for the production of a granular tetrafluoroethylene polymer
US3528954A (en) * 1967-10-30 1970-09-15 Du Pont Process for homopolymerization of tetrafluoroethylene and copolymerization of same with fluoro co-monomers in the solvent 1,1,2 - trichloro - 1,2,2 - trifluoroethane
DE1795078C3 (en) * 1968-08-07 1974-12-19 Farbwerke Hoechst Ag, Vormals Meister Lucius & Bruening, 6000 Frankfurt Aqueous polytetrafluoroethylene dispersions, process for their preparation and their use
US3655611A (en) * 1968-08-09 1972-04-11 Allied Chem Cold flow resistant homogeneous polymers of tetrafluoroethylene and hexafluoropropene and process for preparing them

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221554A2 (en) * 1985-11-06 1987-05-13 Daikin Industries, Limited Organosol of particles of a fluorine-containing-copolymer
EP0221554A3 (en) * 1985-11-06 1989-03-08 Daikin Industries, Limited Aqueous dispersion of particles of a fluorine-containing-copolymer and its use
JP2015520283A (en) * 2012-06-20 2015-07-16 ソルベイ スペシャルティ ポリマーズ イタリー エス．ピー．エー． Tetrafluoroethylene copolymer

Also Published As

Publication number Publication date
DE2620284C2 (en) 1985-04-25
DE2620284A1 (en) 1976-11-18
DE2661083C2 (en) 1989-06-29

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Legal Events

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

Effective date: 19920504