Detergent foam control agents
CA 1285451 C · Owner: Dow Corning Limited · Inventors: Burrill, Peter Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Foam control agents for inclusion in detergent compositions in powder form, are particulate and comprise a silicone antifoam compound and an organic material which is a fatty acid or a fatty alcohol, having 12 to 20 carbon atoms or a, mixture thereof and which has a melting point in the range 45 to 80°C and is insoluble in water. The foam control agents are made by a process in which the antifoam and the organic material are contacted in their liquid phase. These foam control agents give a good storage stability in the detergent powders.
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 July 2, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 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.