Patent ID: 9165777
Filing Date: 2015-10-20
Classification: B24B,C09G,C09K,H01L

Abstract:
1. A polishing agent comprising: water; tetravalent metal hydroxide particles; and an additive, wherein the additive is a cationic polymer that includes at least one selected from the group consisting of polymers of groups (1) and (2) below, and derivatives thereof: (1) a polymer which is a polymerization product of monomers consisting of at least one amine-containing monomer selected from the group consisting of allylamine, diallylamine and vinylamine, and (2) a polymer which is a polymerization product of monomers consisting of at least one amine-containing monomer selected from the group consisting of allylamine, diallylamine and vinylamine, and at least one monomer compound selected from the group consisting of sulfur dioxide, maleic acid, fumaric acid and acrylamide.