| abstract |
(1), which is capable of forming a layer having water repellency, oil repellency and antifouling property and also having a high surface slip property and a friction durability, Wherein Rf represents a C 1-16 alkyl group which may be substituted by a fluorine atom, PFPE represents a perfluoro (poly) ether group, X represents an organic group of 3 to 10 valences, Y represents a hydrogen atom, a hydroxyl group , represents a hydrolysable group or a hydrocarbon group, Q represents a -Z-SiR 1 p R 2 3 -p, Z represents a divalent organic group, R 1 represents a hydroxyl group or a possible hydrolysis, R 2 is C 1 Q represents an alkyl group having 1 to 22 carbon atoms or Q ', Q' is a synonym for Q, p is an integer of 0 to 3 for each of Q and Q ', the sum of p in the formula (1) Q is at most 5 Si connected in a straight chain through the Z group, k is an integer of 1 to 3,? And? Are integers of 1 to 9, and the sum of? And? A novel perfluoro (poly) ether group-containing silane compound to be displayed and a surface treatment composition comprising the same All. |