Coating compositions
CA 1333116 C · Owner: Takeda Chemical Industries, Ltd. · Inventors: Hatta, Toyoji; Tsukamoto, Takashi; Minato, Ichiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A chipping resistant polyurethane coating composition which comprises:, (a) a polyisocyanate blocked with an oxime or a lactam or a polyurethane prepolymer having terminal isocyanate groups blocked with an oxime or a lactam;, (b) a polyaminepolyetherpolyester which is a condensate of a polyaminepolyether and an organic carboxylic acid the, polyaminepolyether being an adduct of an oxirane compound to a polyamine compound, a polyamidepolyaminepolyether which is an adduct of an oxirane compound to a polyamidepolyamine the polyamidepolyamine being a condensate of a polyamine and an organic carboxylic acid; or a mixture of the polyaminepolyetherpolyester and the polyamidepolyaminepolyether. The …
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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
- Granted November 15, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 15, 2011.
- 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.