Patent ID: 7687593

Claim:
A surface treating agent, comprising an epoxy resin monomer; and, an addition copolymer of fluorosilsesquioxane (a) having one addition polymerizable functional group and organopolysiloxane (c) having an addition polymerizable functional group, or an addition copolymer of the fluorosilsesquioxane (a) having one addition polymerizable functional group, the organopolysiloxane (c) having an addition polymerizable functional group, and an addition polymerizable monomer (b), wherein the fluorosilsesquioxane (a) is represented by the following formula (I) and the organopolysiloxane (c) is represented by the following formula (IV), (In the formula (I), R f 1 to R f 7 each independently represent linear or branched fluoroalkyl having 1 to 20 carbon atoms and a methylene thereof may be substituted by oxygen; fluoroaryl having 6 to 20 carbon atoms and at least one hydrogen which is substituted by fluorine or trifluoromethyl; or fluoroarylalkyl having 7 to 20 carbon atoms and at least one hydrogen of the aryl, which is substituted by fluorine or trifluoromethyl, and A 1 represents an addition polymerizable functional group,) (In the formula (IV), n represents an integer of 1 to 1,000; R 1 , R 2 , R 3 , R 4 , and R 5 each represent a group independently selected from the group consisting of: hydrogen; alkyl having 1 to 30 carbon atoms, a hydrogen thereof may be substituted by fluorine, and a —CH 2 — thereof may be substituted by —O— or cycloalkylene; substituted or unsubstituted aryl; and arylalkyl composed of substituted or unsubstituted aryl and alkylene having a hydrogen thereof may be substituted by fluorine and a —CH 2 — thereof may be substituted by —O— or cycloalkylene; and A 2 represents an addition polymerizable functional group).