GB1074768A - Preparation of fluorocarbon waxes - Google Patents

Preparation of fluorocarbon waxes

Info

Publication number
GB1074768A
GB1074768A GB36559/65A GB3655965A GB1074768A GB 1074768 A GB1074768 A GB 1074768A GB 36559/65 A GB36559/65 A GB 36559/65A GB 3655965 A GB3655965 A GB 3655965A GB 1074768 A GB1074768 A GB 1074768A
Authority
GB
United Kingdom
Prior art keywords
waxes
preparation
melting point
reaction zone
atmospheric pressure
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
GB36559/65A
Inventor
Fred Norman Teumac
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.)
Dow Chemical Co
Original Assignee
Dow Chemical 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 Dow Chemical Co filed Critical Dow Chemical Co
Priority to GB36559/65A priority Critical patent/GB1074768A/en
Publication of GB1074768A publication Critical patent/GB1074768A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions 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; Compositions of derivatives of such polymers
    • C08L27/02—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/18—Homopolymers or copolymers or tetrafluoroethene
    • 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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/50—Partial depolymerisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Fluorocarbon waxes are obtained by heating polytetrafluoroethylene in a reaction zone at a temperature of between 325 DEG and 450 DEG C. under subatmospheric or atmospheric pressure, conducting the evolving gases away from the reaction zone, cooling these gases, and condensing them. The waxes obtained by pyrolysis of the polymer at atmospheric pressure have a melting point of from 270 DEG to 277 DEG C. while those obtained at subatmospheric pressure have a melting point of from 220 DEG to 228 DEG C.
GB36559/65A 1965-08-25 1965-08-25 Preparation of fluorocarbon waxes Expired GB1074768A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB36559/65A GB1074768A (en) 1965-08-25 1965-08-25 Preparation of fluorocarbon waxes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36559/65A GB1074768A (en) 1965-08-25 1965-08-25 Preparation of fluorocarbon waxes

Publications (1)

Publication Number Publication Date
GB1074768A true GB1074768A (en) 1967-07-05

Family

ID=10389245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36559/65A Expired GB1074768A (en) 1965-08-25 1965-08-25 Preparation of fluorocarbon waxes

Country Status (1)

Country Link
GB (1) GB1074768A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5606098A (en) * 1994-02-04 1997-02-25 Ao "Avtokoninvest" Amides and esters of perfluoropolyoxaalkylene-sulfo- or perfluoropolyoxaalkylene-carboxylic acids and a process for producing same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5606098A (en) * 1994-02-04 1997-02-25 Ao "Avtokoninvest" Amides and esters of perfluoropolyoxaalkylene-sulfo- or perfluoropolyoxaalkylene-carboxylic acids and a process for producing same

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