Epoxy adhesives
CA 2079622 A1 · Owner: Texaco Chemical Company · Inventors: Waddill, Harold G.; Zimmerman, Robert L.; Cuscurida, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
EPOXY ADHESIVE, (D#81,099-F), ABSTRACT OF THE DISCLOSURE The invention is an epoxy resin adhesive composition. The composition comprises: A. An epoxy resin component; and, B. A curative component comprising: a curing amount of a polyamine curing agent and 2 to 30 phr. of an adhesion enhancer of comprising a partially hindered polyetherpolyamine. The fast curing adhesive offers high lap shear strength and relatively high peel strength.
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 1, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 1, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 1, 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.