Back to results
US 6,358,431 B1Granted
Calixarenes
AssigneeThe University of Sheffield
InventorsCharles James Matthew Stirling, Frank Davis
Life of this patent
Estimating the term…
Abstract
A method of imparting a water repellent surface to a hydrophilic substrate which comprises contacting the substrate with a solution or dispersion of a suitable calixarene in a liquid medium.
Claims10
A method of imparting a water repellant surface to a hydrophilic substrate which comprises contacting the substrate with a solution or dispersion of a suitable resorcarene in a liquid medium, said resorcarene having the general structure I below:
- where
- X is hydrogen, a C1 to C4 alkyl group, a substituted or unsubstituted amino group, or alkylamino group;
- Y is OH or OCH2COOR′, where R′ is a C1 to C4 alkyl group;
- R is a C1 to C18 fluoro-substituted alkyl group;
- and
- n is 1 or 3;
- wherein each X, Y, R′ and R group can be the same or different.
4 more elements
A resorcarene having the general structure I below:
- wherein X is hydrogen, a C1 to C4 alkyl group, or a substituted or unsubstituted amine group;
- Y is OH or OCH2COOR′, where R′ is a C1 to C4 alkyl group;
- R is a C1 to C18 fluoro-substituted alkyl group, and
- n is 1 or 3, and
- wherein each X, Y, R′ and R group can be the same or different.
2 more elements
Dependencies are inferred from the claim text.