Detergent compositions
CA 1182026 A · Owner: Unilever Plc · Inventors: Duggleby, Peter M.; Foster, Francis G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A particulate alkaline detergent with unexpectantly good bleaching performance and with reduced phosphorus content contains 5-40% detergent active 12.5-25%, tripolyphosphate, 7.0-36% aluminosilicate builder such as zeolite, 5-30% peroxybleach such as sodium perborate and 0.1 to 15% activator such as TAED, the perborate to TAED ratio being between 2:1 and 15:1. The detergent active may be anionic material or a mixture of an anionic material and a minor amount of nonionic material. The compositions are particularly suitable for containing fluorescers and show surprisingly improved bleaching performance as water hardness increases.
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 February 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 5, 2002.
- 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.