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    Process for the preparation of perfluorinated compounds
    2.
    发明授权
    Process for the preparation of perfluorinated compounds 失效
    制备全氟化合物的方法

    公开(公告)号：US3816552A

    公开(公告)日：1974-06-11

    申请号：US15564971

    申请日：1971-06-22

    Applicant: HOECHST AG

    Inventor： HARTWIMMER R

    IPC: C07C19/08 ,  C07C17/367 ,  C07C23/02 ,  C07C17/24 ,  C07C23/00

    CPC classification number: C07C17/367 ,  C07C23/00

    Abstract: THE PRESENT INVENTION RELATES TO A PROCESS FOR THE PREPARATION OF CYCLIC PERFLUORO-OLEFINS AND CERTAIN DERIVATIVES BY PYROLYSIS DEGRADATION OF PEERFLUOROCARBON COMPOUNDS AND FLUOROCARBON WAXES OF MEANS AND HIGH MOLECULAR WEIGHT AT TEMPERATURES OF FROM 500* TO 1000*C. AND PRESSURES OF FROM 50 TO 300 ATM./G. THE CYCLIC PERFLUOROOLEFINS ARE SUITABLE COMPOUNDS FOR EXAMPLE FOR INTERMEDIATE PRODUCTS AND FOR CO-MONOMERS.

    4.
    发明专利
    未知

    公开(公告)号：SE373373B

    公开(公告)日：1975-02-03

    申请号：SE951371

    申请日：1971-07-23

    Applicant: HOECHST AG

    Inventor： HARTWIMMER R

    IPC: C08F10/00 ,  C08F210/02 ,  C08F214/18 ,  C08F1/70 ,  C08F15/00 ,  C08F15/02 ,  C08F15/40

    Abstract: 1353535 Fluorocarbon polymers FARBWERKE HOECHST AG 22 July 1971 [25 July 1970] 34371/71 Heading C3P Ethylene is copolymerized with a fluoroolefin in an aqueous acidic medium at 0-25 atmospheres gauge pressure using as catalyst a manganese acid or manganese acid salt or a precursor therefor. In examples ethylene was copolymerized with tetrafluoroethylene, trifluorochloroethylene, trifluorochloroethylene and tetrafluoroethylene, vinyl fluoride and tetrafluoroethylene, or trifluorochloroethylene, or vinylidene fluoride and tetrafluoroethylene or trifluorochloroethylene using as catalyst potassium permanganate or manganate, or permanganic acid dihydrate. The polymerization medium was kept alkaline either by using a buffer such as ammonium chloride, nitrate or perfluorooctanoate or using acidic emulsifiers such as C 6 -C 10 perfluoroalkyl phosphonic acids or perfluorooctanoic acid. Diethylene glycol may be added as a regulator.

    6.
    发明专利
    未知

    公开(公告)号：FR2103276A5

    公开(公告)日：1972-04-07

    申请号：FR7127058

    申请日：1971-07-23

    Applicant: HOECHST AG

    Inventor： HARTWIMMER R

    IPC: C08F10/00 ,  C08F210/02 ,  C08F214/18 ,  C08F1/00 ,  C08F15/00

    Abstract: 1353535 Fluorocarbon polymers FARBWERKE HOECHST AG 22 July 1971 [25 July 1970] 34371/71 Heading C3P Ethylene is copolymerized with a fluoroolefin in an aqueous acidic medium at 0-25 atmospheres gauge pressure using as catalyst a manganese acid or manganese acid salt or a precursor therefor. In examples ethylene was copolymerized with tetrafluoroethylene, trifluorochloroethylene, trifluorochloroethylene and tetrafluoroethylene, vinyl fluoride and tetrafluoroethylene, or trifluorochloroethylene, or vinylidene fluoride and tetrafluoroethylene or trifluorochloroethylene using as catalyst potassium permanganate or manganate, or permanganic acid dihydrate. The polymerization medium was kept alkaline either by using a buffer such as ammonium chloride, nitrate or perfluorooctanoate or using acidic emulsifiers such as C 6 -C 10 perfluoroalkyl phosphonic acids or perfluorooctanoic acid. Diethylene glycol may be added as a regulator.

    PROCESS FOR THE MANUFACTURING OF FLUORINE-CONTAINING POLYMERS
    9.
    发明专利
    PROCESS FOR THE MANUFACTURING OF FLUORINE-CONTAINING POLYMERS 未知

    公开(公告)号：ZA714935B

    公开(公告)日：1972-04-26

    申请号：ZA714935

    申请日：1971-07-23

    Applicant: HOECHST AG

    Inventor： HARTWIMMER R

    IPC: C08F10/00 ,  C08F210/02 ,  C08F214/18 ,  C08F

    Abstract: 1353535 Fluorocarbon polymers FARBWERKE HOECHST AG 22 July 1971 [25 July 1970] 34371/71 Heading C3P Ethylene is copolymerized with a fluoroolefin in an aqueous acidic medium at 0-25 atmospheres gauge pressure using as catalyst a manganese acid or manganese acid salt or a precursor therefor. In examples ethylene was copolymerized with tetrafluoroethylene, trifluorochloroethylene, trifluorochloroethylene and tetrafluoroethylene, vinyl fluoride and tetrafluoroethylene, or trifluorochloroethylene, or vinylidene fluoride and tetrafluoroethylene or trifluorochloroethylene using as catalyst potassium permanganate or manganate, or permanganic acid dihydrate. The polymerization medium was kept alkaline either by using a buffer such as ammonium chloride, nitrate or perfluorooctanoate or using acidic emulsifiers such as C 6 -C 10 perfluoroalkyl phosphonic acids or perfluorooctanoic acid. Diethylene glycol may be added as a regulator.

    10.
    发明专利
    未知

    公开(公告)号：DE2037028A1

    公开(公告)日：1972-02-03

    申请号：DE2037028

    申请日：1970-07-25

    Applicant: HOECHST AG

    Inventor： HARTWIMMER R

    IPC: C08F10/00 ,  C08F210/02 ,  C08F214/18 ,  C08F15/02

    Abstract: 1353535 Fluorocarbon polymers FARBWERKE HOECHST AG 22 July 1971 [25 July 1970] 34371/71 Heading C3P Ethylene is copolymerized with a fluoroolefin in an aqueous acidic medium at 0-25 atmospheres gauge pressure using as catalyst a manganese acid or manganese acid salt or a precursor therefor. In examples ethylene was copolymerized with tetrafluoroethylene, trifluorochloroethylene, trifluorochloroethylene and tetrafluoroethylene, vinyl fluoride and tetrafluoroethylene, or trifluorochloroethylene, or vinylidene fluoride and tetrafluoroethylene or trifluorochloroethylene using as catalyst potassium permanganate or manganate, or permanganic acid dihydrate. The polymerization medium was kept alkaline either by using a buffer such as ammonium chloride, nitrate or perfluorooctanoate or using acidic emulsifiers such as C 6 -C 10 perfluoroalkyl phosphonic acids or perfluorooctanoic acid. Diethylene glycol may be added as a regulator.

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