Method for producing granular or powdery detergent compositions
CA 2624919 C · Owner: Basf Se · Inventors: Seebeck, Tanja; Guembel, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method for producing granular or pulverulent detergent , compositions, comprising the production of a detergent base powder by drying an aqueous , detergent slurry. The invention is characterized in that a copolymer is added to the slurry. T, and , also to detergent slurries and detergent compositions comprising a copolymer obtainable by , free-radical copolymerization of (A) from 20 to 80% by weight of at least one monomer from the group of the monoethylenically unsaturated monocarboxylic acids dicarboxylic acids and , dicarboxylic anhydrides and, (B) from 20 to 80% by weight of at least one monomer from the group of the aliphatic or , aromatic …
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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
- Filed September 29, 2006 and granted January 27, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.