Bleaching compositions comprising hydrophobic peracid bleach, hydrophilic peracid bleach and a peroxide bleach
CA 2303769 A1 · Owner: The Procter & Gamble Company · Inventors: Grippay, Ludivine Pascale Marie; Guedira, Nour-Eddine; Mason, Susan Judith
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 granular detergent compositions and in particular low density, phosphate-containing detergent compositions which , comprise a specific bleaching system containing hydrophobic peracid bleach and hydrophilic peracid bleach and a peroxide source having specific low levels , of available oxygen from hydrophobic and hydrophilic peroxyacid bleach specific ratios of available oxygen from the hydrophobic peracid bleach to the hydrophilic peracid bleach and specific ratios of available oxygen of the peroxide source to the available oxygen of the peracids. The invention also relates to the use of specific mixed bleach systems for sanitisation or reduction of the …
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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 June 12, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 12, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 12, 2020.
- 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
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.