Patent ID: 6380302
Filing Date: 2002-04-30
Classification: B01F,C08F,Y10S

Abstract:
A surfactant composition for emulsion polymerization, comprisinga compound (a) represented by a formula (I) and having a critical micelle concentration (CMC) in the range of from not less than 0.007 mol Lâˆ’1 to not more than 0.1 mol Lâˆ’1 and a compound (b) represented by a formula (II) and having a CMC in the range of from not less than 1Ã—10âˆ’5 mol Lâˆ’1 to less than 0.007 mol Lâˆ’1, as essential components, at the molar ratio of the components (a) to (b) in terms of (a)/(b) being from 5/95 to 75/25:R1Oâ€”(A1O)mâ€”SO3M1â€ƒâ€ƒ(I) R2Oâ€”(A2O)nâ€”SO3M2â€ƒâ€ƒ(II) in which each of R1 and R2 is a monovalent aliphatic hydrocarbon group; each of A1 and A2 is an ethylene group; each of m and n shows the average molar number of ethylene oxide added and is a number selected from 1 to 50; each of M1 and M2 is a monovalent cation.