Organosilicon compounds having triazene groups
CA 2128342 C · Owner: Wacker-Chemie Gmbh · Inventors: Kollefrath, Ralf; Voit, Brigitte; Deubzer, Bernward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The organosilicon compounds have at least one Si-C-bonded organic radical which contains at least one triazene group. The organosilicon compounds can be employed as heat- and light-unstable free radical initiators for the preparation of homograft, co- and block copolymers from olefinically unsaturated compounds and for crosslinking organosilicon compounds and organic compounds which can be polymerized by free radical polymerization.
Read the whole patent
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
- Filed July 19, 1994 and granted June 24, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 19, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 19, 2016.
- 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.