abstract |
Polyurethanes-urea based on perfluoropolyethers comprising ionizable groups and pendant groups having the following structure:n n—R I —Si(OR II ) n (OH) 3−n (I)n nwherein:n R I is alkylene from 1 to 10 carbon atoms; R II is an alkyl group from 1 to 4 carbon atoms; n is an integer from 0 to 3. |