Process for producing water dilutable oxazolidine group containing epoxy resin ethers, coating compositions prepared therefrom and their use as cathodically depositable binders
CA 1185397 A · Owner: Vianova Kunstharz Aktiengesellschaft · Inventors: Leitner, Wolfgang; Pampouchidis, Georg; Bleikolm, Anton
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to binders for the formulation of electrophoretic coating compositions. The binders, which are water-dilutable upon partial or total neutralization with acids, are epoxy resin ester based and are character-, ized in that they are produced by n process in which the epoxy groups of a resin like compound with at least 2 1,2-epoxy groups per molecule and an epoxy equivalent of at least 160 are reacted completely at 60 - 75°C in the presence of inert, solvents, with a semi-ester of an aliphatic cycloaliphatic or aromatic, dicarboxylic acid and an N-2-hydroxyalkyl oxazolidine having the general formula R1 being a saturated or unsaturated aliphatic cycloaliphatic or aromatic …
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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 April 9, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 9, 2002.
- 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
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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.