公开(公告)号：US5149842A

公开(公告)日：1992-09-22

申请号：US613483

申请日：1990-10-31

申请人： Dario Sianesi ,  Antonio Marraccini ,  Giuseppe Marchionni

发明人： Dario Sianesi ,  Antonio Marraccini ,  Giuseppe Marchionni

IPC分类号： C08G65/00

CPC分类号： C08G65/007

摘要： A process is disclosed for preparing peroxidic perfluoropolyethers comprising perfluoroalkylenoxy units having at least two carbon atoms, characterized in that one or more perfluoroolefins, except tetrafluoroethylene used alone, are reacted with oxygen in the liquid phase at a temperature not exceeding 50.degree. C. and in the presence of one or more compounds having one or more F-X bonds, in which X is selected from the group consisting of F, O and Cl.

公开(公告)号：US5124420A

公开(公告)日：1992-06-23

申请号：US723279

申请日：1991-06-28

申请人： Claudio Tonelli ,  Vito Tortelli

发明人： Claudio Tonelli ,  Vito Tortelli

IPC分类号： C07C17/00 ,  C07C17/04 ,  C07C17/358 ,  C07C19/08 ,  C07C21/18 ,  C08F4/00 ,  C08F14/26

CPC分类号： C08F4/00 ,  C07C17/04 ,  C07C17/358 ,  C07C19/08 ,  C07C21/18

摘要： The present invention relates to the synthesis of new terminal olefins, perfluoro 2,4-dimethyl 3-ethylpentene and perfluoro 2-isopropyl 3,3-dimethyl butene, and to the subsequent fluorination thereof in order to obtain highly branched perfluoroalkanes, capable of providing perfluoroalkyl radicals, which are utilizable as initiators for the polymerization of ethylenically unsaturated monomers.