Curable mixtures of epoxy resins and metal/amine complexes
CA 1106535 A · Owner: Ciba-Geigy Investments Ltd. · Inventors: Eldin, Sameer H.; Stockinger, Friedrich; Lohse, Friedrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Heat-curable mixtures of epoxide compounds and carboxylic acid metal salt/amine complexes which can be prepared by reacting 1 mol of a carboxylic acid metal salt of the formula, in which A? is the anion of a carboxylic acid which contains polar substituents or radical and in particular contains an amide grouping, such as monoamidosuccinic acid benzenesulphonic acid or pyrrolidone-5-carboxylic acid and Me ? is a divalent metal cation, with 1 mol of a diamine of the formula, R1 - NH - R - NH - R2 in which R is an ethylene or propylene radical and R1 and R2 are hydrogen, alkyl having 1 to 4 ? atoms cyclohexyl, benzyl, 2-aminoethyl or 3-aminopropyl in a polar organic, solvent and in the …
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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 August 4, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 4, 1998.
- 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.