Thermoset covering composition
CA 2177483 C · Owner: Shibato, Kishio · Inventors: Moriya, Joichi; Betz, Peter; Shibato, Kishio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
To provide compositions with which paints which have excellent acid resistance and scratching resistance and with which a poor, appearance can be avoided can be obtained. A thermoset covering composition comprised of (A) vinyl based copolymer comprised of lactone modified acrylic monomer and other monomer (B) blocked polyisocyanate compound which has been reacted with a mixture of malonic acid ester and acetoacetic acid ester and (C) alkyl etherified amino resin.
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 January 18, 1995 and granted May 2, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 18, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 2017.
- 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.