Ammonium nitriles and the use thereof as hydrophobic bleaching activators
CA 2456927 A1 · Owner: Clariant Gmbh · Inventors: Reinhardt, Gerd; Seebach, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to ammonium nitriles of general formula (I) wherein the , radicals R3, R4, R5 and X have the meaning as cited in the description and R1 and R2 respectively represent individually a straight or branched chained C5- C24-alkyl, alkenyl or alkylether group. The inventive compounds are used as bleaching activators in washing, cleaning and disinfective agents and in , textile and paper bleaching.
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 March 12, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 12, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2025.
- 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.