Use of triacylated ethanolamines as liquid, watermiscible peroxide activators
CA 2005331 A1 · Owner: Hoechst Aktiengesellschaft · Inventors: Gethoffer, Hanspeter; Reinhardt, Gerd; Endo, Hajime
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract:, Use of triacylated ethanolamines as liquid water-, miscible peroxide activators, Triacylated ethanolamines of the formula (RCO) (R1CO)N-(CH2)2-OCOR2, where R, R1 and R2 which may be identical to or different from one another, are each alkyl, alkenyl or aryl and, the total number of carbon atoms in the molecule is from 8 to 14, are liquid and readily water-miscible. Owing to these properties, they are very useful as peroxide activators in liquid detergent compositions.
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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
- Filed December 13, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 13, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 2011.
- 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.