Concentrated stable non-aqueous fabric softener composition
CA 1283510 C · Owner: Fraikin, Marie-Helene · Inventors: Julemont, Michel; Fraikin, Marie-Helene; Demangeon, Yvon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hexylene glycol alone or in combination with a lower alkanol or another glycol or glycol ether or mixtures thereof, provide a non-aqueous liquid carrier for cationic fabric softeners, especially the quaternary ammonium and imidazolinium cationic compounds, for preparing stable concentrated fabric softener compositions. The compositions may contain up to 60% by weight of the cationic compound and may additionally include up to 15% by weight of a nonionic surfactant. The concentrated compositions disperse easily in cold water and are easily dispensed from automatic dispensers.
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
- Granted April 30, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 30, 2008.
- 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.