| 主权项 |
1. A solvent-based coating composition comprising an additive and a coating resin,
wherein the additive consists of a silica composition consisting of colloidal silica coated with a cationic surfactant represented by formula (1) below dispersed in an organic solvent selected from the group consisting of ester solvents, ketone solvents, hydrocarbon solvents and a mixture thereof, wherein X represents a halogen atom or a methyl sulfuric acid derivative, R1 to R4 each independently represent a hydrocarbon group having 1 to 36 carbon atoms, or a hydrocarbon group having 1 to 36 carbon atoms and having at least one substituent selected from ester groups, amide groups, and hydroxyl group, or a polyether group represented by formula (2) below, provided that at least one of R1 to R4 must be (i) a polyether group represented by formula (2) below, (ii) a hydrocarbon group having 6 to 36 carbon atoms, or (iii) a hydrocarbon group having 6 to 36 carbon atoms and having at least one substituent selected from the group consisting of ester groups, amide groups, and hydroxyl group, wherein m represents an integer of 1 to 100 and R5 represents an alkylene group having 2 to 4 carbon atoms, and wherein an amount of the silica composition to the coating resin is 0.5 to 10 percent by weight. |
