Preparation of detergent formulations
CA 1236369 A · Owner: Unilever Plc · Inventors: Smith, Ian J.; Irlam, Geoffrey
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Preparation of detergent formulations The present invention provides a process for mixing water soluble salts of long chain (C8 to C22) monocarboxylic acids and water soluble acyl (C8 to C22) isethionates wherein the two materials are mixed and subjected to temperatures in the range from about 55°C up to about 90°C under conditions of shear. Preferably the materials are mixed in particulate form. The weight ratio of monocarboxylic acid salts to isethionates is preferably in the range of from 10:90 to 95:5. Suitably the present process is performed by use of a cavity transfer mixer. The product of the present process can have a smooth feel both initially and during use.
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 May 10, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 10, 2005.
- 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.