Laundry detergent compositions comprising hydrophobically modified polyamines
CA 2389768 A1 · Owner: The Procter & Gamble Company · Inventors: Gosselink, Eugene Paul; Price, Kenneth Nathan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to laundry detergent composition comprising: from about 0.01 %, most preferably from about 3 % to about 50 % most , preferably to about 7 % by weight of a hydrophobically modified polyamine having formula (I): wherein R is C5-C20 linear or branched alkylene and , mixtures thereof; R1 is an alkyleneoxy unit having the formula: -(R2O)x-R3 wherein R2 is C2-C4 linear or branched alkylene and mixtures thereof; R3 is , hydrogen C1-C22 alkyl, C7-C22 alkylenearyl, an anionic unit and mixtures , thereof; x is from about 15 to about 30; Q is a hydrophobic quaternizing unit selected from the group consisting of C8-C30 linear or branched alkyl C6-C30 , cycloalkyl, …
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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 November 7, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 7, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 7, 2022.
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Timeline
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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.