Thickener for aqueous systems
CA 2330971 A1 · Owner: Reeve, Paul Francis David · Inventors: Reeve, Paul Francis David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Aqueous compositions having enhanced thickening properties containing lipophilically modified copolymer thickeners and one or more hydrophilic surfactants are disclosed. In particular aqueous compositions containing (i), lipophilically modified copolymers containing at least 5% of selected lipophilically modified components and (ii) surfactants having an HLB value of greater than 15 are useful for the thickening of a range of personal domestic , and, industrial products.
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 15, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 15, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 2023.
- 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.