Electrostatic coating of glass bottles with powder containing epoxide and amidine
CA 1072828 A · Owner: Veba-Chemie Aktiengesellschaft · Inventors: Schulde, Felix; Obendorf, Johann; Dormann, Gunter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved method is disclosed for the coating of glass bottles with transparent plastic film which film will withstand repeated cleaning. The method involves treating clean bottles with a silane size, preheating the bottles and then electrostatically applying a powder lacquer thereto the powder lacquer, containing one or more 1,2-epoxide compounds with at least one epoxide group per molecule and a lower melting point greater than 40°C and a, hardener which is an amidine of the general formula wherein R denotes hydrogen, an alkyl or aryl group R' denotes a, cycloalkyl, heterocycloalkyl or R group R" denotes an alkyl or aryl, substituted alkylene or arylene group X denotes hydrogen or a …
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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 March 4, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 4, 1997.
- 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.