Fabric conditioning composition
CA 1340941 C · Owner: Unilever Plc · Inventors: Foster, Francis Geoffrey
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fabric conditioning composition in solid or liquid form contains a nan-cationic softening agent and a nonionic cellulose ether derivative to improve deposition of the softener on fabrics. Preferred derivatives have a gel point below 55°C and an HLB of less than 3.6. Ethyl hydroxylethyl cellulose ether is preferred. The exemplified softeners are soaps, petroleum jelly glycerol, monostearate. A cationic softener such as a quaternary ammonium salt may optionally be present. When the compositions are in liquid form the presence of a dispersing aid is preferred.
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 4, 2000. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 4, 2017.
- 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.