Mixing system for producing water-dilutable coatings
CA 2107351 C · Owner: Mayer, Bernd · Inventors: Wegner, Egon; Piontek, Susanne; Mayer, Bernd
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 mixer system for the preparation of water-thinnable coating compositions with accurately defined colors, produced from various base colorants, characterized in that the mixer system comprises, A) various base colorants A which contain less than 5% by weight of water, at least one colored and/or special effect pigment, an organic solvent at least, one water-thinnable or water-dispersible binder and optionally, auxiliary substances and additives and, B) at least one water-containing, pigment-free component B. In addition, the present invention relates to a process for the production of coating compositions using this mixer system and to the use of the mixer …
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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 February 19, 1992 and granted December 16, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 19, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 19, 2014.
- 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.