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基本信息:
- 专利标题: Neutralization method for polyorganosiloxanes
- 专利标题(中):一种聚有机硅氧烷的中和过程
- 申请号:EP98309905.2 申请日:1998-12-03
- 公开(公告)号:EP0924238A1 公开(公告)日:1999-06-23
- 发明人: Graiver, Daniel , Tselepis, Arthur James
- 申请人: DOW CORNING CORPORATION
- 申请人地址: 3901 S. Saginaw Road Midland Michigan 48686-0994 US
- 专利权人: DOW CORNING CORPORATION
- 当前专利权人: DOW CORNING CORPORATION
- 当前专利权人地址: 3901 S. Saginaw Road Midland Michigan 48686-0994 US
- 代理机构: Hall, Marina
- 优先权: US990417 19971215
- 主分类号: C08G77/32
- IPC分类号: C08G77/32
摘要:
A method for neutralizing a polyorganosiloxane mixture. The method comprises (A) contacting a mixture comprising a polyorganosiloxane and a base with a neutralizing amount of a solid organic acid at a temperature above the melting point of the solid organic acid forming a molten organic acid and an insoluble adduct of the base with the molten organic acid, (B) lowering the temperature to solidify residual molten organic acid, and (C) then separating the insoluble adduct and the residual solid organic acid from the polyorganosiloxane mixture. The present invention is especially useful for neutralizing polyorganosiloxane mixtures where the polyorganosiloxane comprises hydrocarbyl groups bonded to silicon.
公开/授权文献:
- EP0924238B1 Neutralization method for polyorganosiloxanes 公开/授权日:2005-02-16
IPC结构图谱:
C | 化学;冶金 |
--C08 | 有机高分子化合物;其制备或化学加工;以其为基料的组合物 |
----C08G | 用碳—碳不饱和键以外的反应得到的高分子化合物 |
------C08G77/00 | 在高分子主链中形成含硅键合,有或没有硫、氮、氧,或碳键合反应得到的高分子化合物 |
--------C08G77/04 | .聚硅氧烷 |
----------C08G77/32 | ..聚合后处理 |