Method for forming double-layer coatings, method for forming multilayer coatings, and multilayer coatings
CA 2293027 A1 · Owner: Kawakami, Ichiro · Inventors: Uchidoi, Satoru; Kawakami, Ichiro; Sakamoto, Hiroyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for forming double-layer coatings excellent in smoothness and resistant to yellowing is provided which comprises electrodepositing a cationic electrodeposition coating composition to form an uncured cationically electrodeposited coating applying an, intermediate coating composition to said uncured coating to form an uncured intermediate coating, and heating both uncured coatings simultaneously, said cationic electrodeposition coating composition containing a sulfonium group- and propargyl group-containing resin composition.
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 December 17, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 17, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 17, 2021.
- 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.