B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
117/64
B05D 5/08 (2006.01) B05D 5/06 (2006.01) B44C 1/04 (2006.01)
Patent
CA 1233707
ABSTRACT OF THE DISCLOSURE A method for forming a decoration on a coating of polytetrafluoroethylene (PTFE) applied on a metallic substrate as applicable in particular to internal and/or external decoration of culinary utensils, and comprising the following steps : - an anti-adhesive layer formed by a composition based on an aqueous dispersion of PTFE which may or may not be colored is applied on the metallic substrate, - after drying and prior to sintering of the anti- adhesive layer, there is applied on said layer through a serigraphic screen a colored composition containing an aqueous dispersion or a powder of fluorocarbon resin to which are added a thickening and/or gelling agent and a solvent which is miscible with water and has a vapor pressure below that of water after drying, - the two layers thus obtained are baked simultaneously in order to sinter all the particles of PTFE and of fluorocarbon resin.
499539
Buffard Jean-Pierre
Gardaz Claudine
Fetherstonhaugh & Co.
Seb S.a.
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