发明授权
US4011247A Method for the preparation of an organohydrogenpolysiloxane as a product
of a partial addition reaction
失效
用于制备作为部分添加反应的产物的组氨酸聚硅氧烷的方法
- 专利标题: Method for the preparation of an organohydrogenpolysiloxane as a product of a partial addition reaction
- 专利标题(中): 用于制备作为部分添加反应的产物的组氨酸聚硅氧烷的方法
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申请号: US512369申请日: 1974-10-04
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公开(公告)号: US4011247A公开(公告)日: 1977-03-08
- 发明人: Yasuhiko Sato , Hiroshi Inomata , Toshio Shiobara
- 申请人: Yasuhiko Sato , Hiroshi Inomata , Toshio Shiobara
- 申请人地址: JA Tokyo
- 专利权人: Shinetsu Chemical Company
- 当前专利权人: Shinetsu Chemical Company
- 当前专利权人地址: JA Tokyo
- 优先权: JA48-113047 19731008
- 主分类号: C08G77/00
- IPC分类号: C08G77/00 ; C07F7/08 ; C08G77/04 ; C08G77/22 ; C08G77/32 ; C08G77/38 ; C07D301/00
摘要:
Starting from an organohydrogenpolysiloxane having at least two hydrogen atoms directly bonded to the silicone atoms, an organohydrogenpolysiloxane is obtained in which part of the silicon-bonded hydrogen atoms have been converted into organic groups and the remaining silicon-bonded hydrogen atoms are left unreacted. The starting organohydrogenpolysiloxane is brought to the partial addition reaction with less than equivalent amount of an organic unsaturated compound having aliphatic double bond in the molecule in the presence of a platinum catalyst, and the reaction mixture is subjected to distillation while the platinum catalyst is deactivated by added benzothiazole or derivatives thereof, thus providing for the production of the organohydrogenpolysiloxane of the invention in reproducibly in high yield. The compounds are useful as crosslinking agents in the manufacture of various silicone products.