Method for producing 2-chlorethyldichlorosilanes
CA 1251460 A · Owner: Dynamit Nobel Aktiengesellschaft · Inventors: Vahlensieck, Hans-Joachim; Seiler, Claus-Dietrich
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 the production of 2-chlorethyldichlorosilanes by reacting vinyldichlorosilanes with hydrochloride in the presence of FeC13 or TaC15. In the presence of these anhydrous metal chlorides this, reaction may be carried out in the temperature range of between 30 and 90°C, without the occurrence of methyl or ethyltrichlorosilanes, or other fission-products in appre-, ciable amounts. The end-producs obtained may also easily be separated from the by-products by vacuum distillation without having to use additional methods. In this connection vacuum distillation is possible even in the presence of the metal-chlorides.
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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.