Patent ID: 8703007

Claim:
A polishing composition comprising an oxidant, an anticorrosive, and a surfactant, the surfactant being a compound represented by Chemical Formula 1: wherein one to three of R 1 to R 5 in Chemical Formula 1 are functional groups represented by Chemical Formula 2: another one of R 1 to R 5 is a hydrogen atom or an alkyl group having 1 to 9 carbon atoms, and the remainder are hydrogen atoms, O—R 6 is oxyethylene, oxypropylene, or a random or block conjugate of oxyethylene and oxypropylene, n is an integer of 1 or more, X is an OSO 3 − group, an OPO 3 2− group, or an OH group, and R 7 to R 13 in Chemical Formula 2 are hydrogen atoms or methyl groups.