Epoxy resin compositions
CA 1339334 C · Owner: Novartis Ag · Inventors: Hofer, Arnold; Gempeler, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An epoxy resin composition comprising an epoxy resin which is solid at room temperature and contains on average more than epoxy group per molecule, a compound which contains two phenolic hydroxyl groups and a quaternary pyrrolidinium salt as advancement catalyst. When advanced with compounds containing two phenolic hydroxyl groups, these compositions give excellent products of low viscosity which are suitable for example, for use, in powder resin coating.
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
- Granted August 19, 1997. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 19, 2014.
- 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.