Self-extinguishing, track-resistant epoxy resin moulding composition and use thereof
CA 1270590 C · Owner: Ciba-Geigy Ag · Inventors: Schreiber, Bruno
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Self-extinguishing, track-resistant epoxy resin moulding composition and use thereof, Abstract of the Disclosure The invention relates to epoxy resin moulding compositions containing, (a) at least one epoxy resin adduct of a low molecular diglycidyl ether of a bisphenol and an aromatic or cycloaliphatic diamine that contains not less than 2.0 epoxide equivalents/kg of resin (b) at least one aromatic polyol containing more than 5 hydroxyl equivalents/kg of polyol as hardener, the amount of said hardener being such that the content of hydroxyl groups is 0.5 to 0.8 per epoxy group, (c) at least one curing accelerator (d) up to 70 % by weight of aluminium hydroxide and, (e) 1-20 % by weight of …
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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 June 19, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 19, 2007.
- 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.