Curable composition

A curable composition comprising:

• (A) a fluorinated amide compound of general formula (1) below 34
• wherein R1 is a substituted or unsubstituted monovalent hydrocarbon group, R2 is a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group, Q is a group of general formula (2) 35
• in which R2 is as defined above and R3 is a substituted or unsubstituted divalent hydrocarbon group which may be separated by at least one atom selected from among oxygen, nitrogen and silicon atoms, or a group of general formula (3) 36
• in which R4 and R5 are each independently a substituted or unsubstituted divalent hydrocarbon group, Rf is a divalent perfluoroalkylene or divalent perfluoropolyether group, and the letter “a” is 0 or a positive integer;
• (B) a fluorinated organohydrogensiloxane having at least one monovalent perfluorooxyalkyl, monovalent perfluoroalkyl, divalent perfluorooxyalkylene or divalent perfluoroalkylene group and at least two hydrosilyl groups per molecule;
• (C) a catalytic amount of a platinum group compound;
• (D) an organosiloxane having, per molecule, at least one hydrogen atom bonded directly to a silicon atom and at least one epoxy group or trialkoxysilyl group or both bonded to a silicon atom through a carbon atom or through a carbon atom and an oxygen atom;
• (E) a silica powder having a BET specific surface area of at least 50 m2/g;
• and
• (F) an organosilane or organosiloxane having, per molecule, at least one monovalent perfluorooxyalkyl, monovalent perfluoroalkyl, divalent perfluorooxyalkylene or divalent perfluoroalkylene group and at least one hydroxy group or alkoxy group or both bonded directly to a silicon atom;
• wherein component B is included in an amount corresponding to 0.5 to 5 moles of hydrosilyl groups per mole of aliphatic unsaturated groups in the composition.