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GB840735A - Improvements in or relating to fluorine-containing polymers - Google Patents

Improvements in or relating to fluorine-containing polymers

Info

Publication number
GB840735A
GB840735A GB30728/56A GB3072856A GB840735A GB 840735 A GB840735 A GB 840735A GB 30728/56 A GB30728/56 A GB 30728/56A GB 3072856 A GB3072856 A GB 3072856A GB 840735 A GB840735 A GB 840735A
Authority
GB
United Kingdom
Prior art keywords
fluorine
monomers
polymer
coagulated
bromine
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
GB30728/56A
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing 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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of GB840735A publication Critical patent/GB840735A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F214/00Copolymers 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
    • C08F214/18Monomers containing fluorine
    • C08F214/24Trifluorochloroethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F214/00Copolymers 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
    • C08F214/18Monomers containing fluorine

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)

Abstract

Ethylenically unsaturated monomers are polymerized in a system comprising water, an oxidant and, as an emulsifier, a compound of the formula X1(CF2-CFCl)nCF2(CH2)mR, in which X1 is fluorine, chlorine or bromine or a perhalomethyl radical containing fluorine, chlorine or bromine, n is an integer of 2 to 9, R is an hydrophilic group and m is 0 or 1 and is O only when R contains a <FORM:0840735/IV(a)/1> group; the resulting latex is then coagulated, and the polymer separated and dried. Monomers specified are perfluoropropene, tetrafluoroethylene, chlortrifluoroethylene, trifluoroethylene, vinylidene fluoride, vinyl fluoride, difluorodichloroethylene, alphamethyl phenyl difluoroethylene and perfluoroacrylonitrile which may be polymerized alone or in admixture with one another or with other monomers such as vinyl or vinylidene chloride. The emulsifiers used may be those disclosed in Specifications 784,727 and 795,513. Oxidants specified are potassium persulphate and the other oxidants disclosed in Specification 795,513, which may be used in conjunction with the sodium salts of sulphur containing reducing acids and a small quantity of iron. The pH of the reaction mixture may be between 3 and 13 and is preferably between 6 and 10. The polymer latex may be coagulated by freezing and the separated polymer washed first with water and then with an organic solvent. Reference has been directed by the Comptroller to Specification 795,513.
GB30728/56A 1955-11-10 1956-10-09 Improvements in or relating to fluorine-containing polymers Expired GB840735A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US840735XA 1955-11-10 1955-11-10

Publications (1)

Publication Number Publication Date
GB840735A true GB840735A (en) 1960-07-06

Family

ID=22182721

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30728/56A Expired GB840735A (en) 1955-11-10 1956-10-09 Improvements in or relating to fluorine-containing polymers

Country Status (2)

Country Link
FR (1) FR1163928A (en)
GB (1) GB840735A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4515927A (en) * 1983-03-11 1985-05-07 Gaylord Norman G Process to copolymerize vinyl chloride and chlorotrifluoroethylene
US4702961A (en) * 1983-12-22 1987-10-27 Ausimont, U.S.A., Inc. Method of melt processing and article made of a stabilized copolymer of vinyl chloride and chlorotrifluoroethylene
US5169915A (en) * 1990-06-29 1992-12-08 Daikin Industries, Ltd. Fluorine-containing copolymer and curable composition containing the same
US5216081A (en) * 1990-06-29 1993-06-01 Daikin Industries, Ltd. Fluorine-containing copolymer and curable composition containing the same
US5504170A (en) * 1993-08-27 1996-04-02 W. L. Gore & Associates, Inc. Aqueous microemulsion polymerization of tetrafluoroethylene
US5623038A (en) * 1994-12-14 1997-04-22 Minnesota Mining And Manufacturing Company Fluorine-containing polymers and preparation thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4515927A (en) * 1983-03-11 1985-05-07 Gaylord Norman G Process to copolymerize vinyl chloride and chlorotrifluoroethylene
US4702961A (en) * 1983-12-22 1987-10-27 Ausimont, U.S.A., Inc. Method of melt processing and article made of a stabilized copolymer of vinyl chloride and chlorotrifluoroethylene
US5169915A (en) * 1990-06-29 1992-12-08 Daikin Industries, Ltd. Fluorine-containing copolymer and curable composition containing the same
US5216081A (en) * 1990-06-29 1993-06-01 Daikin Industries, Ltd. Fluorine-containing copolymer and curable composition containing the same
US5504170A (en) * 1993-08-27 1996-04-02 W. L. Gore & Associates, Inc. Aqueous microemulsion polymerization of tetrafluoroethylene
US5616648A (en) * 1993-08-27 1997-04-01 W. L. Gore & Associates, Inc. Microemulsion of polytetrafluoroethylene particles
US5623038A (en) * 1994-12-14 1997-04-22 Minnesota Mining And Manufacturing Company Fluorine-containing polymers and preparation thereof
US5877267A (en) * 1994-12-14 1999-03-02 Minnesota Mining And Manufacturing Company Fluorine-containing polymers and preparation thereof

Also Published As

Publication number Publication date
FR1163928A (en) 1958-10-02

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