COATING COMPOSITION, ANTIFOULING COATED FILM, ANTIFOULING SUBSTRATE AND MANUFACTURING METHOD OF ANTIFOULING SUBSTRATE

PROBLEM TO BE SOLVED: To provide a coating composition for forming a coated film maintaining good antifouling property for long time not only to macro contamination in sea water but also to adhesion of slime.SOLUTION: There is provided a coating composition containing at least one kind of organopolysiloxane component selected from an organopolysiloxane component (1) and an organopolysiloxane component (2), wherein the component (1) contains polyether modified organopolysiloxane and organopolysiloxane component (B) having at least one group represented by the formula [I]:Si(CH)O(RO)(RO)SiRX, where X is a hydrolyzable group, in a molecule and the component (B) is organopolysiloxane having hydroxyl groups or the like at both terminals of a molecular chain or the like, the component (2) is polyether modified organopolysiloxane having at least one group represented by the formula [I] in a molecule and hydroxyl groups or the like at both terminals of the molecule chain or the like.SELECTED DRAWING: None 【課題】海中でマクロ汚損のみならずスライムの付着に対しても良好な防汚性を長期間維持する塗膜を形成するための塗料組成物を提供すること。【解決手段】オルガノポリシロキサン系成分（１）およびオルガノポリシロキサン系成分（２）から選ばれる少なくとも１種のオルガノポリシロキサン系成分を含有し、成分（１）は、式［Ｉ］：Ｓｉ(ＣＨ2)lＯ(Ｒ2Ｏ)m(Ｒ3Ｏ)nＳｉＲ1aＸ3-a（Ｘは加水分解性基である。）で示される基を１分子中に少なくとも１つ有するポリエーテル変性オルガノポリシロキサンおよびオルガノポリシロキサン系成分（Ｂ）を含有し、成分（Ｂ）は、分子鎖の両末端に水酸基等を有するオルガノポリシロキサン等であり、成分（２）は、前記式［Ｉ］で示される基を１分子中に少なくとも１つ有し、分子鎖の両末端に水酸基等を有するポリエーテル変性オルガノポリシロキサン等である塗料組成物。【選択図】なし