Aqueous peroxide emulsions
CA 2359065 A1 · Owner: Akzo Nobel Nv · Inventors: O, Boen Ho; Westmijze, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to aqueous peroxide emulsions optionally containing , anti-freeze and/or further additives which contain a specific emulsifier , system comprising a copolymer of an .alpha..beta.-unsaturated dicarboxylic acid and a C8-24 .alpha.-olefin, the acid groups of which are esterified with an ethoxylated alcohol having a degree of ethoxylation of 1-45 as well as an , ethoxylated fatty alcohol with an HLB-value greater than 16.
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 January 6, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 6, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 6, 2022.
- 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.