33.
    发明专利
    未知

    公开(公告)号:LU66662A1

    公开(公告)日:1973-07-18

    申请号:LU66662

    申请日:1972-12-15

    Inventor: GADESSAUD ROBERT

    Abstract: A battery containing an alkaline electrolyte, having within a container, said electrolyte and two electrodes separated by a separator; said separator being made of a partially reticulated polyvinyl acetal produced by the action of at least one aldehyde on polyvinyl alcohol; preferably an aromatic aldehyde, which may also have at least one hydroxyl radical, being used together with formaldehyde.

    37.
    发明专利
    未知

    公开(公告)号:DE2755256A1

    公开(公告)日:1978-07-06

    申请号:DE2755256

    申请日:1977-12-12

    Abstract: The invention relates to a semi-permeable membrane for lead acid batteries. The membrane has a microporous structure comprising a first polymer and a second polymer closely mixed together, the first polymer being poly (2-hydroxyethylmethacrylate), known as reticulated poly HEMA, characterized by the fact that the second polymer comprises one polymer or a mixture of several different polymers chosen from among polyoxyethylene glycol, polyvinylpyrrolidone, polyacrylic acid, polymethacrylic acid, copolymers of acrylic and methacrylic acid, polyacrylates and polymethacrylates of alkyl, and the copolymers of the acrylates and methacrylates of alkyls.

    39.
    发明专利
    未知

    公开(公告)号:DK135437C

    公开(公告)日:1977-10-03

    申请号:DK627572

    申请日:1972-12-15

    Inventor: GADESSAUD ROBERT

    Abstract: A battery containing an alkaline electrolyte, having within a container, said electrolyte and two electrodes separated by a separator; said separator being made of a partially reticulated polyvinyl acetal produced by the action of at least one aldehyde on polyvinyl alcohol; preferably an aromatic aldehyde, which may also have at least one hydroxyl radical, being used together with formaldehyde.

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