Aqueous primer coating composition, process for formation of coating film using said composition, and coated article
CA 2425129 A1 · Owner: Mizuguchi, Katsumi · Inventors: Ogawa, Takeshi; Igarashi, Kazuo; Nakaoka, Ryoichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides: an aqueous primer coating composition which, can form a coating film excellent in the humidity-resisting adhesion and the gasohol, resistance, and which can enhance the productivity in the coating steps; a process for, formation of a coating film using this composition; and a coated article. The aqueous, primer coating composition comprises an acid-anhydride-modified chlorinated polyolefin emulsion resin (A), an aqueous urethane dispersion (B) an aqueous , epoxy, resin (C), and an organic strong base and/or its salt (D); wherein: relative to the total, nonvolatile content of the (A) (B), and (C), the nonvolatile content of the (A) is in the, range of 20 …
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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 April 9, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 9, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 2025.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.