Curable epoxy resin compositions
CA 2219686 A1 · Owner: Vantico Ag · Inventors: Weidmann, Ulrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Epoxy resin compositions, comprising, (a) an epoxy resin which is liquid at below 160°C and which has an average of more than one epoxy group in the molecule, (b) a di- or polycarboxylic acid or its anhydride (c) 0.1-15% by weight, based on the amount of components (a) and (b) of a wax having, a dropping point from 80 to 95°C and optionally, (d) customary fillers or modifiers for epoxy resins are preferably used as epoxy casting resin compositions in particular for the preparation of, moulded articles by the pressure gelation process.
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 October 28, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 28, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 28, 2019.
- 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.