Aqueous resin dispersion
CA 2124530 A1 · Owner: Kansai Paint Co. Ltd. · Inventors: Haneishi, Hidehiko; Kudoh, Masanobu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An aqueous resin dispersion which comprises as the chief component acrylic-modified epoxy-polyamine resin composed of a bisphenolic epoxy resin containing at least two epoxy groups per molecule and as bound to at, least a part of said epoxy groups an acrylic resin, having on the average at least one functional group which is capable of reacting with said epoxy group per mole-, cule, the molecular weight distribution of said acrylic resin as expressed by its weight average molecular weight (Mw)/number average molecular weight (Mn) being within a range of 1 to 1.2, and an active hydrogen-containing amino compound. Said aqueous resin dispersion may further optionally contain non-ionic, …
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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 May 27, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 27, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 27, 2016.
- 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.