Coating composition, coating method and coated articles
CA 2094320 A1 · Owner: Miyamoto, Yuzo · Inventors: Nakahata, Akimasa; Yukawa, Yoshiyuki; Yabuta, Motoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides the following coating composition, coating method and coated article. A curable top coating composition essentially comprising, (A) a hydroxyl-containing vinyl type resin containing 45 to 55% by weight of styrene monomer as a copolymerized unit of the resin, (B) at least one member selected from among amino resins and (blocked) polyisocyanate compounds and, (C) a microparticulate polymer having an average particle diameter within the range of 0.01 to 1 µm and containing 40 to 60% by weight of styrene monomer as a copolymerized component of each particle, wherein the cured film from the coating composition contains the styrene-derived benzene ring in a proportion of 13 …
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 19, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 19, 2015.
- 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.