Process for the production of (meth)allyl phosphonic acid dialkyl esters
    1.
    发明授权
    Process for the production of (meth)allyl phosphonic acid dialkyl esters 失效
    制备(甲基)烯丙基膦酸二烷基酯的方法

    公开(公告)号:US4017564A

    公开(公告)日:1977-04-12

    申请号:US607946

    申请日:1975-08-26

    CPC分类号: C07F9/4015

    摘要: The invention relates to a process for the production of allyl or methallyl phosphonic acid dialkyl esters by reacting allyl chloride or methallyl chloride with trialkyl phosphites at temperatures of from 80.degree. to 160.degree. C in the presence of a compound of avalent and/or monovalent nickel or in the presence of a compound of avalent, monovalent or divalent cobalt.

    摘要翻译: 本发明涉及通过烯丙基氯或甲代烯丙基氯与三烷基亚磷酸酯在80至160℃的温度下,在有机和/或一价镍的化合物存在下反应制备烯丙基或甲代烯丙基膦酸二烷基酯的方法 或在有价,一价或二价钴化合物存在下进行。

    Combined recording and scanning device for facsimile transmission
    4.
    发明授权
    Combined recording and scanning device for facsimile transmission 失效
    用于传真传输的组合记录和扫描装置

    公开(公告)号:US3953681A

    公开(公告)日:1976-04-27

    申请号:US485205

    申请日:1974-07-02

    CPC分类号: H04N1/29 B41J2/415 H04N1/024

    摘要: Combined recording and scanning device for facsimile transmission in which recording is effected by means of an electrode system which comprises strip-shaped conductors the facing ends of which define a gap and a bore which extend at right angles to the conductors and is formed in a subjacent transparent insulating sheet and beneath which a back-electrode is disposed at a small distance. The scanning member is an electro-optical receiver which is placed on the electrode gap in the direction of the bore axis.

    摘要翻译: 用于传真传输的组合记录和扫描装置,其中通过电极系统进行记录,该电极系统包括带状导体,其面对端限定间隙,并且与导体成直角形成的孔,并形成在下面 透明绝缘片,其下面设置有小的距离的背面电极。 扫描构件是电极接收器,其被放置在沿轴孔方向的电极间隙上。