Coating compositions
CA 1339366 C · Owner: Imperial Chemical Industries Plc · Inventors: Redman, Richard Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A non-gelled amine-epoxide reaction product and acid addition salts thereof which can be used in coating compositions suitable for application to a substrate by electrodeposition where the product is obtained by co-reacting (A) a secondary amine NHR1R2, wherein R1 and R2 the same or different are C2 or C3 hydroxyalkyl groups, (B) a polyepoxide (C) optionally a, polyoxyalkylene polyamine (D) a product of the reaction between, an epoxide with at least two epoxy groups and which contains less than 40% by weight of aromatic groups, and an amine of formula NR3R4(CH2)nNH2 in which n is from 2 to 6 and where R3 and R4, the same or different are methyl or ethyl and optionally (E) a, monoepoxide, …
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
- Granted August 26, 1997. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 26, 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.