COATING AGENT COMPOSITION, SURFACE TREATMENT AGENT COMPRISING SAME, AND ARTICLE SURFACE TREATED WITH SURFACE TREATMENT AGENT

The coating agent composition is capable of forming a cured coating film having excellent lipophilicity and wear resistance, and contains the following (A) and (B) as essential components: (A) a (hydrolyzable) organosiloxane compound containing a lipophilic group and/or a partial (hydrolytic) condensate thereof; (B) a polyol ester comprising a condensation product of a 2-6-membered alcohol and a C3-22 fatty acid, the mass ratio of the component (A) to the component (B) being 0.1 < (A)/(B) < 10, and containing a lipophilic group selected from the group consisting of groups represented by the formula (-C (= O) OR1), (-O-C (= O) R1), (-C (= O) NR12), (-C (= O) SR1), and (-P (= O) (OR1) 2) (R1 is H, a C1-30 alkyl group, a C6-30 aryl group, or a C7-30 aralkyl group), and a silanol group or a hydrolyzable silyl group. 涂布剂组合物可形成亲油性、耐磨损性优异的固化被膜，该涂布剂组合物含有下述(A)和(B)作为必要成分：(A)含有亲油性基团的(水解性)有机硅氧烷化合物和/或其部分(水解)缩合物，其含有选自由式(-C(＝O)OR1)、(-O-C(＝O)R1)、(-C(＝O)NR12)、(-C(＝O)SR1)和(-P(＝O)(OR1)2)(R1为H、C1～30的烷基、C6～30的芳基或C7～30的芳烷基)表示的基团中的