Synergistic mixture of low-molecular and high- molecular polyalkylpiperidines
CA 1190038 A · Owner: Ciba-Geigy Investments Ltd. · Inventors: Gugumus, Francois
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Low-molecular and high-molecular polyalkylpiperidines are suitable as a synergistic mixture for stabilising organic material, in particular organic polymers. The compounds are substances known per se. Thus for, example, the mixture of, is distinguished by a pronounced synergism.
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
- Granted July 9, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 9, 2002.
- 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.