METHOD OF RECOVERING ORGANOALKOXYSILANE FROM POLYORGANOSILOXANE
    2.
    发明公开
    METHOD OF RECOVERING ORGANOALKOXYSILANE FROM POLYORGANOSILOXANE 失效
    VERFAHREN ZURZURÜCKGEWINNONVON ORGANOALKOXYSILANE AUS POLYDIORGANOSILOXAN

    公开(公告)号:EP0739926A1

    公开(公告)日:1996-10-30

    申请号:EP95904014.8

    申请日:1994-12-28

    IPC分类号: C08G77/38 C07F7/18 C08J11/18

    摘要: Disclosed are a process which comprises reacting a high molecular weight polyorganosiloxane or a composition containing the same with an alkoxysilane and/or a partially hydrolyzed condensate thereof at a temperature of lower than 300 °C in the presence of an alcoholate compound and recovering the resulting organoalkoxysilane and, in addition thereto, at least one of a distillable polyorganosiloxane low molecular weight compound, a non-volatile liquid polyorganosiloxane and a silica; and a process which comprises reacting a high molecular weight polyorganosiloxane or a composition containing the same with an alcoholate compound at a temperature of 50 to 150 °C in an anhydrous state and recovering the resulting distillable polyorganosiloxane low molecular weight compound and, in addition thereto, at least one of an organoalkoxysilane and a non-volatile liquid polyorganosiloxane.

    摘要翻译: 公开了一种方法,其包括使高分子量聚有机硅氧烷或含有该组合物的组合物与烷氧基硅烷和/或部分水解缩合物在低于300℃的温度下在醇化合物存在下反应,并回收得到的有机烷氧基硅烷 并且除此之外还包括可蒸馏的聚有机硅氧烷低分子量化合物,非挥发性液体聚有机硅氧烷和二氧化硅中的至少一种; 以及包括使高分子量聚有机硅氧烷或含有该组合物的组合物与醇化合物在无水状态下在50至150℃的温度下反应的方法,并回收得到的可蒸馏的聚有机硅氧烷低分子量化合物, 有机烷氧基硅烷和非挥发性液体聚有机硅氧烷中的至少一种。