Coating compositions with photocatalytic activity
CA 2566899 C · Owner: Troll, Michael · Inventors: Troll, Michael; Grochal, Peter; Duttlinger, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a composition for coating walls façades or similar. , The inventive composition comprises at least one binder which has an absorbance (Kubelka-Munk function F(R8)) of less than 0.8 especially less , than 0.5, at least at one absorption wavelength ranging between 380 and 500 nm, particularly between 400 and 450 nm and at least one photocatalytically , active substance that has an absorbance (Kubelka-Munk function F(R8)) exceeding 0.005, above all exceeding 0.01 and most preferably of 0.2 or more , at said absorption wavelength. Also disclosed are a method for producing said composition as well as the use of the 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
- Filed April 6, 2005 and granted September 11, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 6, 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.