Patent ID: 6565767
Filing Date: 2003-05-20
Classification: C09G,C09K

Abstract:
A polishing material, comprising water and at least one polymer particle having size of 3-1000 nm, which is obtained by polycondensation of at least one member chosen from the group consisting of:(A) a compound represented by formula 1; M(OR1)z (B) hydrolysates of the compound represented by formula 1, and (C) partial condensates of the compound represented by formula 1, wherein said polycondensation occurs in the presence of a preliminary polymer particle having a mean particle size of 3-1000 nm, said preliminary polymer particle obtained by polycondensation of at least one member chosen from the group consisting of (A), (B) and (C) and at least one member chosen from the group consisting of:(i) a compound represented by formula 2: (R2)nM(OR3)z-.n (ii) hydrolysates of formula 2, and (iii) partial condensates of formula 2, wherein,M is a member chosen from the group consisting of Al, Si, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ge, Zr, Nb, Mo, Sn, Sb, Ta, W, Pb and Ce; z is the atomic valence of M; R1 and R3 are chosen from the group consisting of an alkyl group of 1-5 carbons, an aryl group of 1-6 carbons, and an aryl group of 1-9 carbons; R2 is a monovalent organic group of 1-8 carbons; and n is an integer from 1 to (zâˆ’2), and wherein R1, R2 and R3 may be the same or different.