Detergent compositions and the production thereof
CA 1064360 A · Owner: Unilever Limited · Inventors: Clarke, David E.; Brouwer, Hendrik W.; Niemantsverdriet, Robert E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heavy duty fabric washing powder having detergency equivalent to products of higher phosphate content is based on 5-50% of an ethoxylated alcohol as the predominant detergent active compound, 10-30% by weight of a water soluble soap and 10-40% by weight of sodium tripolyphosphate. Particularly preferred components contain C12-15 alcohols ethoxylated with from 4 to 12 moles of ethylene oxide per mole of alcohol from about, 20 to about 30% by weight of sodium tripolyphosphate and from about 8 to 15% of soap. Processes for making the powders are also described.
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 October 16, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 16, 1996.
- 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.