Organosilane coating compositions
CA 2010969 C · Owner: Takeuchi, Eizi · Inventors: Takeuchi, Eizi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An antistatic coating composition comprising: (a) a reaction product of phosphoric acid and an aluminium compound, particularly preferably aluminium dihydrogenphosphate;, (b) a first organosilane compound having at least one epoxy group and at least one hydrolyzable alkoxy group; (c) a second organosilane compound having two or more hydrolyzable alkoxy groups; and, (d) an organic solvent. The coating compoisition has a long pot life to be stably stored for a long period of time and may be coated, on any of usual materials including metallic inorganic and, organic materials to form a cured coating film which is excellent in resistance to heat, durability water-proof, property and resistance …
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 February 27, 1990 and granted May 11, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 27, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2012.
- 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.