| abstract |
An antifouling agent that imparts good antifouling properties and a hard coat material imparted with antifouling properties by using the antifouling agent. An antifouling agent comprising a perfluoropolyether group-containing polyether-modified polysiloxane represented by the following formula (1) as an antifouling agent. (Rf is a perfluoroalkyl group, X is an F atom, CF 3 group, Q is a divalent organic group, R is an H atom, an alkyl group, an acyl group, R 1 and R 2 are an alkyl group, an aryl group, and an aralkyl group) [Selection figure] None |