Method for producing granulated or powdery detergent compositions
CA 2571706 C · Owner: Basf Aktiengesellschaft · Inventors: Michl, Kathrin; Seebeck, Tanja
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a method for producing granulated or powdery detergent compositions comprising adding into slurry a copolymer obtained by radical copolymerisation of (A) 50-99.5 mol % monoethylenically unsaturated monocarboxylic , acid or the salt thereof (B) 0.5-20.0 mol % monoethylenically unsaturated alkoxylated , monomer of formula (I), (see formula I) in which the variables are defined as follows: R1 is hydrogen or methyl; R2 is -(CH2)x-O-, -CH2-NR5-, -CH2-O-CH2-CR6R7-CH2-O- or -CONH-; R3 is a C2-alkylene radical; R4 is , hydrogen, -SO3M or -PO3M2; R5 is hydrogen or -CH2-CR1=CH2; R6 is -O-R3-On- R4; , R7 is hydrogen or ethyl; M is alkali metal or hydrogen; n is from 4 to 250; x …
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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 June 18, 2005 and granted June 11, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 18, 2025.
- 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.