Coating composition

摘要

There is provided a polyester coating composition having excellent action of preventing deposition of outdoor stain and stain caused by rainfall, being capable of extending a period of time (pot life) from the mixing to the coating, and comprising (A) a polyester resin, (B) one or more of fluorine-containing organosilicon compounds having a fluorine content of 5 to 30% by mass, (C) one or more of aliphatic hydrocarbon compounds having hydroxyl group and 1 to 10 carbon atoms, in which a part of hydrogen atoms bonded to carbon atom may be substituted by fluorine atoms and/or one or more of alkoxy compounds having 2 to 10 carbon atoms, in which a part of hydrogen atoms bonded to carbon atom may be substituted by fluorine atoms, and (D) an organic solvent.

主权项

1. A coating composition comprising:
(A) a polyester resin, (B) at least one of fluorine-containing organosilicon compound having a fluorine content of 5 to 30% by mass and represented by the formula (I): wherein R1, R2, R3 and R4 are the same or different and each is an alkyl group having 1 to 20 carbon atoms which may have hetero atom and may have polymerizable carbon-carbon double bond at its end; “n” is an integer of 1 to 30; at least one of R1, R2, R3 and R4 has fluorine atom, (C) from the group consisting of butanol, octanol and ethyl orthoformate, and (D) at least one of organic solvent other than the compound (C) and selected from the group consisting of hydrocarbon solvents, ketone solvents, ester solvents, amide solvents and sulfonic acid ester solvents.