Accelerator for curing epoxy resins
CA 2065071 A1 · Owner: Texaco Chemical Company · Inventors: Su, Wei-Yang; Waddill, Harold G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
ACCELERATOR FOR CURING EPOXY RESINS, (D#81,030-F) ABSTRACT OF THE DISCLOSURE, An accelerator for the curing of epoxy resins with anhydrides has been discovered. The accelerator comprises an effective amount of 1-isopropyl-2- methyl imidazoline. The resulting cure epoxy resins are resistant to heat and chemicals and are useful for applications such as the encapsulation of electronic components. pg\81030.app
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 April 3, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 3, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 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.