| 摘要 |
<p>A fluorochemical composition comprising a major amount of organic solvent and 0.05% by weight to 5% by weight of fluorochemical oligomer dispersed or dissolved in said organic solvent and said fluorochemical oligomer being represented by the general formula X-MfnMhmMar-G wherein X represents the residue of an initiator or hydrogen; Mf represents units derived from fluorinated monomers; Mh represents units derived from a non-fluorinated monomers; Ma represents units having a silyl group represented by the formula (II), wherein each of Y4,Y5 and Y6 independently represents an alkyl group, an aryl group or a hydrolyzable group; G is a monovalent organic group comprising the residue of a chain transfer agent; n represents a value of 1 to 100; m represents a value of 0 to 100; r represents a value of 0 to 100; and n+m+r is at least 2; with the proviso that at least one of the following conditions is fulfilled: (a) G is a monovalent organic group that contains a silyl group of the formula (III) wherein Y1, Y2 and Y3 each independently represents an alkyl group, an aryl group or a hydrolyzable group with at least one of Y1, Y2 and Y3 representing a hydrolyzable group; or (b) r is at least 1 and at least one of Y4, Y5 and Y6 represents a hydrolyzable group.</p> |
