Back to results
US 12,305,333 B2Granted
Method of surface chemical functionalization for developing of functional hydrophobic surfaces
AssigneeCity University of Hong Kong
InventorsChi-Chiu Ko, Yelan Xiao
Life of this patent
Estimating the term…
Abstract
A photochemical method for chemical modification of a hydrophilic material to provide the surface of the material with hydrophobic properties. The method comprises functionalizing the surface to provide an amine group thereon, and then functionalizing the surface photo-catalytically to provide perfluoroalkanamide thereon. Alternatively, the method comprises reacting a silane moiety functional group on the surface of the material with a perfluoroalkylhalide in the presence of a photo-catalyst and light.
Claims4
A method of rendering a material with a hydrophobic surface, comprising the steps of:
- (a) immersing the material in a first solution comprising a silane to silanize the material;
- (b) immersing the product of step (a) in a second solution comprising perfluoroalkyl halide and a photo-catalyst to load the silanized material with perfluoroalkyl halide and the photo-catalyst;
- and
- (c) irradiating the product of step (b) with light thereby rendering the material with the hydrophobic surface.
1 more element
Dependencies are inferred from the claim text.