Oxidant detergent containing stable bleach activator granules
CA 1324558 C · Owner: Strand, Bruce B. · Inventors: Deleeuw, David L.; Brodbeck, Kelly J.; Strand, Bruce B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
of the Invention, The present invention provides stable bleach activator granules comprising:, a) a peroxygen bleach activator having the structure: , wherein R is C1-20 branched or straight chain alkyl, alkoxylated alkyl, cycloalkyl, alkenyl aryl, substituted aryl, alkylaryl; R' and R" are independently H, C1-4 alkyl, aryl; and L is a leaving group;, b) a pliable binding material selected from materials having a melting completion temperature of greater than about 40°C; and, optionally c) a filler material. These bleach activator granules are combined with a detergent base which contains an oxidant bleach to provide an activated oxidant detergent composition.
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 November 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 2010.
- 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.