Method for producing cross-linked rubber particles
CA 2416455 A1 · Owner: Bayer Aktiengesellschaft · Inventors: Obrecht, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an improved method for producing cross-linked rubber particles. The cross-linking agents are added to the aqueous rubber dispersions and reacted at high temperatures without rendering the reaction , mixture inert or impinging inert gas. The cross-linked rubber particles are suitable, for example, for producing technical rubber articles and various tyre components.
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 11, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 11, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 11, 2023.
- 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.