Method for producing 2-phenylethylchlorosilanes
CA 1251459 A · Owner: Huls Aktiengesellschaft · Inventors: Seiler, Claus-Dietrich; Vahlensieck, Hans-Joachim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention deals with a method for producing 2-phenylethylchlorosilanes. The starting products used are hydrogenchlorosilanes and styrene which are reacted with each other within the framework of the addition-reaction known per se. According to the invention this reaction takes place in the presence of benzothiazole. The amount of benzothiazole used may correspond at least to the amount of platinum catalyst used. The preferred molar ratio of platinum catalyst to benzothiazole used is between 1 : 2 and 1 : 50. The reaction may be carried out with high yields of the 2-isomer, which is practically free from 1-isomer, at temperatures of up to about 90°C. In this connection, an …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 21, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 21, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.