GB1443444A - Bromine-containing telomers derived from tetrafluoroethylene - Google Patents

Bromine-containing telomers derived from tetrafluoroethylene

Info

Publication number
GB1443444A
GB1443444A GB1687973A GB1687973A GB1443444A GB 1443444 A GB1443444 A GB 1443444A GB 1687973 A GB1687973 A GB 1687973A GB 1687973 A GB1687973 A GB 1687973A GB 1443444 A GB1443444 A GB 1443444A
Authority
GB
United Kingdom
Prior art keywords
tetrafluoroethylene
bromine
fluoroalkyl
telomers
per mole
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
GB1687973A
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
Priority to GB1687973A priority Critical patent/GB1443444A/en
Priority to NL7402884A priority patent/NL7402884A/xx
Priority to BE142416A priority patent/BE812786A/en
Priority to FR7411036A priority patent/FR2225402B1/fr
Priority to CA196,666A priority patent/CA1020588A/en
Priority to DE19742416261 priority patent/DE2416261A1/en
Priority to JP3894374A priority patent/JPS5030984A/ja
Publication of GB1443444A publication Critical patent/GB1443444A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/08—Materials not undergoing a change of physical state when used
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/26—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton
    • C07C17/272—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by addition reactions
    • C07C17/275—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by addition reactions of hydrocarbons and halogenated hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/26—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton
    • C07C17/272—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by addition reactions
    • C07C17/278—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by addition reactions of only halogenated hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C19/00—Acyclic saturated compounds containing halogen atoms
    • C07C19/08—Acyclic saturated compounds containing halogen atoms containing fluorine
    • C07C19/14—Acyclic saturated compounds containing halogen atoms containing fluorine and bromine

Abstract

1443444 Tetrafluoroethylene telomers containing bromine IMPERIAL CHEMICAL INDUSTRIES Ltd 21 Feb 1974 [9 April 1973] 16879/73 Heading C2C Bromine - containing telomers of tetrafluoroethylene are prepared in the vapour phase at elevated temperature by reacting with a fluoroalkyl bromide of general formula wherein X is F, Cl or Br and Y is F, Cl, Br or a perfluoro-, perfluorochloro-, perfluorobromo- or a perfluorobromochloro-methyl group. Suitable fluoroalkyl bromides are CF 3 Br, CF 2 Br 2 , CF 2 BrCl and C 2 F 5 Br. The proportion of fluoroalkyl bromide is preferably at least one mole per mole of tetrafluoroethylene, especially at least 3 moles per mole. The process may be conducted at 250-500‹ C., particularly 300- 400‹ C. Amongst the examples C 2 F 5 Br is reacted with CF 2 = CF 2 to give mainly C 2 F 5 CF 2 CF 2 Br with a small amount of C 2 F 5 (CF 2 CF 2 ) 2 Br.
GB1687973A 1973-04-09 1973-04-09 Bromine-containing telomers derived from tetrafluoroethylene Expired GB1443444A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB1687973A GB1443444A (en) 1973-04-09 1973-04-09 Bromine-containing telomers derived from tetrafluoroethylene
NL7402884A NL7402884A (en) 1973-04-09 1974-03-04
BE142416A BE812786A (en) 1973-04-09 1974-03-25 BROMINE TELOMERS DERIVED FROM TETRAFLUOROETHYLENE
FR7411036A FR2225402B1 (en) 1973-04-09 1974-03-29
CA196,666A CA1020588A (en) 1973-04-09 1974-04-02 Bromine-containing telomers derived from tetrafluoroethylene
DE19742416261 DE2416261A1 (en) 1973-04-09 1974-04-03 BROMOMINOUS TELOMERS OF TETRAFLUORAETHYLENE AND METHOD FOR MANUFACTURING THE SAME
JP3894374A JPS5030984A (en) 1973-04-09 1974-04-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1687973A GB1443444A (en) 1973-04-09 1973-04-09 Bromine-containing telomers derived from tetrafluoroethylene

Publications (1)

Publication Number Publication Date
GB1443444A true GB1443444A (en) 1976-07-21

Family

ID=10085328

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1687973A Expired GB1443444A (en) 1973-04-09 1973-04-09 Bromine-containing telomers derived from tetrafluoroethylene

Country Status (7)

Country Link
JP (1) JPS5030984A (en)
BE (1) BE812786A (en)
CA (1) CA1020588A (en)
DE (1) DE2416261A1 (en)
FR (1) FR2225402B1 (en)
GB (1) GB1443444A (en)
NL (1) NL7402884A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997002227A1 (en) * 1995-06-30 1997-01-23 E.I. Du Pont De Nemours And Company Addition of trifluoromethanes to fluoroolefins and isomerization of monohaloperfluoro alkanes
US5929293A (en) * 1995-06-30 1999-07-27 E. I. Du Pont De Nemours And Company Process for the preparation of fluoroolefins

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5488189A (en) * 1993-12-14 1996-01-30 E. I. Du Pont De Nemours And Company Process for fluorinated propanes and pentanes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997002227A1 (en) * 1995-06-30 1997-01-23 E.I. Du Pont De Nemours And Company Addition of trifluoromethanes to fluoroolefins and isomerization of monohaloperfluoro alkanes
US5929293A (en) * 1995-06-30 1999-07-27 E. I. Du Pont De Nemours And Company Process for the preparation of fluoroolefins

Also Published As

Publication number Publication date
BE812786A (en) 1974-09-25
FR2225402B1 (en) 1977-09-30
CA1020588A (en) 1977-11-08
FR2225402A1 (en) 1974-11-08
NL7402884A (en) 1974-10-11
JPS5030984A (en) 1975-03-27
DE2416261A1 (en) 1974-10-24

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Legal Events

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