Method for the preparation of silicon-nitrogen compounds
CA 1096392 A · Owner: Dynamit Nobel Aktiengesellschaft · Inventors: Kotzsch, Hans-Joachim; Draese, Rudiger; Vahlensieck, Hans J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method for the preparation of silicon-nitrogen compounds of the general formulae, (R3Si)n NR'3-n or R2Si(NR'2)2 or, cyclic ?R2SiNR'??, wherein the radicals R' which are the same or different each represent a hydrogen atom, an alkyl group containing 1 to 8 carbon atoms or an aryl group, the radicals R which are the same or different each represent an alkyl group containing 1 to 20 carbon atoms or an aryl radical n is 1 or, 2 and x is 3 or 4. The method is characterized in that hydrogensilanes of the general formula R3-ySiHy+1, in which y is 0 or 1 and R has the aforesaid meaning are, reacted with ammonia or amines of the general formula NR'3-nHn, in which R' and n have the aforesaid meaning …
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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 February 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 24, 1998.
- 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.