Aqueous liquid compositions comprising peracid compounds and substituted phenolic compounds
CA 2202125 A1 · Owner: Naser, Mark Stephen · Inventors: Knowlton, Charles Nathaniel; Coope, Janet Lynn; Kuzmenka, Daniel Joseph
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 liquid detergent compositions comprising: (1) 1-80% by wt. surfactant;, (2) defined peroxyacid; and (3) 0.01-20% by wt. of a mono substituted phenolic compound. The compounds help to extend the half life of the peracid bleaches in such compositions. The invention further relates to a method of incorporating stability of surfactant compositions comprising peracid bleaches which method comprises adding 0.01-2.0%by wt. of said substituted phenolic compound to the composition.
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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 April 8, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 8, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 2019.
- 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.