Coating resin composition
CA 2037508 A1 · Owner: Nagaoka, Haruo · Inventors: Nagaoka, Haruo; Fujibayashi, Toshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coating resin composition composed mainly of an epoxy resin derivative obtained by reacting an amine compound containing hydroxyl groups, secondary amino groups and amide groups in a molecule with an epoxy resin in its epoxy groups. The resin composition can be used alone, or in the combination with an epoxy resin containing, per molecule, on the average at least 2 epoxy functional groups each comprising an epoxy groups directly bound to an alicyclic ring and/or bridged alicyclic ring and is useful in a cationically electrodepositable paint.
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 March 4, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 4, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 4, 2013.
- 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.