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    • 1. 发明授权
    • Preparation of siloxanes
    • 硅氧烷的制备
    • US08686175B2
    • 2014-04-01
    • US13130371
    • 2009-11-13
    • Amy GehrigKelly HumburgKimmai T. NguyenMichael David TelgenhoffRobert Wells
    • Amy GehrigKelly HumburgKimmai T. NguyenMichael David TelgenhoffRobert Wells
    • C07F7/00
    • C08G77/08C08G77/10C08G77/12
    • The invention relates to a process for producing siloxanes comprising reacting at least two siloxanes in the presence of an ion exchange resin catalyst comprising from 6 to 19 weight %, based upon the dry weight of the ion exchange resin catalyst, water, at a temperature from ambient to 110° C. The invention also relates to a process for reusing the ion exchange resin catalyst after the reacting of the at least two siloxanes in the presence of the ion exchange resin catalysts comprising adding water to the ion exchange resin catalyst to readjust the water content to from 6 to 19 weight % water, based on the dry weight of the catalyst, and then reacting at least two siloxanes in the presence of the readjusted water content ion exchange resin catalyst.
    • 本发明涉及一种生产硅氧烷的方法,其包括在离子交换树脂催化剂存在下使至少两种硅氧烷反应,所述离子交换树脂催化剂包含基于离子交换树脂催化剂干重的6至19重量%的水, 本发明还涉及在离子交换树脂催化剂存在下使至少两种硅氧烷反应后使离子交换树脂催化剂重新使用的方法,包括向离子交换树脂催化剂中加入水以重新调节 水含量为6至19重量%的水,基于催化剂的干重,然后在再调节的含水离子交换树脂催化剂存在下使至少两种硅氧烷反应。