Non-toxic cleaning composition
CA 2460760 A1 · Owner: Unilever Plc · Inventors: Bargaje, Vijaya M.; Dhandapani, Kavitha; Behal, Vidur
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a cleaning composition comprising an immiscible liquid system having at least one liquid-liquid interface with an interfacial tension greater than 5mN/m. The less polar solvent in the system has a carbon chain length of at least 4, preferably greater than 6 or is a silicone with , more than 3 SiO units. Typical examples of suitable less polar solvents are hydrocarbons, fluoroethers, polydimethylsiloxanes and fatty acid methyl esters. The more polar liquid in the system is preferably water. The composition is particularly suitable for cleaning soiled fabric especially to , remove particulate soil therefrom.
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 September 23, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 23, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2024.
- 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.