One pack self curable epoxy resin composition
CA 2104165 A1 · Owner: Bruynseels, Maria J. J. · Inventors: Yianni, Paul A.; Bruynseels, Maria J. J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a one pack self curable epoxy resin composition comprising, i) as epoxy component (a) at least one 1,2-epoxy resin compound having an average of more than one epoxy group per molecule and, ii) as curing component (b) at least one reaction product obtainable by reacting at elevated temperature dicyandiamide with a tetrabromobisphenol-A type epoxy resin said resin, having an epoxide equivalent weight of from 330 to 1500 and a bromine content of from 10 to 50% by weight and, iii) as solvent (c) at least one compound being selected from the group represented by the general formula (I) (I), wherein R1, R2, R4 and R5 each individually represent hydrogen or C1-3 alkyl, …
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 August 16, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 16, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 16, 2015.
- 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.