Electrostatic coating of glass bottles with powder...

Details Electrostatic coating of glass bottles with powder... Electrostatic coating of glass bottles with powder...

B - Operations, Transporting

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B05D 1/06 (2006.01) B05D 1/04 (2006.01) B65D 23/08 (2006.01) C03C 17/28 (2006.01) C03C 17/32 (2006.01) C03C 17/34 (2006.01) C08G 59/50 (2006.01)

Patent

CA 1072828

ABSTRACT OF THE DISCLOSURE 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 electro- statically 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 Image 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 Image group.

247749

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