C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/50 (2006.01) C08G 65/00 (2006.01) D21H 19/24 (2006.01) G03C 1/93 (2006.01)
Patent
CA 2726656
The invention pertains to a process for imparting grease, oil and water repellence to a substrate, said process comprising applying by means of a printing process on at least a portion of the surface of said substrate a composition comprising at least one (per)fluoropolyether derivative. The Applicant has found that by means of the process of the invention it is possible to confer suitable grease, oil and water repellence properties to substrates via selective treatment/coating, by significantly reducing total amount of fluoro-containing additive required for the target properties.
Linvention concerne un procédé pour conférer à un substrat une résistance au mouillage par de la graisse, de lhuile et de leau, ledit procédé comprenant lapplication dune composition qui comprend au moins un dérivé de (per)fluoropolyéther sur au moins une partie de la surface dudit substrat par un procédé dimpression. Le demandeur a découvert que le procédé de linvention permet de conférer à des substrats des propriétés appropriées de résistance au mouillage par de la graisse, de lhuile et de leau par traitement/revêtement sélectif, en réduisant significativement la quantité totale dadditif contenant du fluor nécessaire pour obtenir les propriétés cibles.
Finelli George Michael
Meroni Grazia
Padigala Mahesh
Robic
Solvay Solexis S.p.a.
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