Surfactant composition for emulsion polymerization

Abstract

Abstract The present invention provides a surfactant composition for emulsion polymerization of which stability upon polymerization and mechanical stability of emulsion are good, in which particle has a small size, and of which viscosity may be made to low. The surfactant composition for emulsion polymerization comprises a compound (a) represented by the formula (I) and having a critical micelle concentration (CMC) in the range of from not less than 0.007 mol L -1 to not more than 0.1 mol L -1 and a compound (b) represented by the formula (II) and having a CMC in the range of from not less than 1 × 10 -5 mol L -1 to less than 0.007 mol L -1 , as essential components, and the molar ratio of the components (a) to (b) in terms of (a)/(b) is from 5/95 to 75/25: R 1 O-(A 1 O) m -SO 3 M 1 R 2 O-(A 2 O) n -SO 3 M 2 (in the formulae, R 1 and R 2 are monovalent aliphatic hydrocarbon groups; A 1 and A 2 are alkylene groups having 2 to 4 carbons; m and n are numbers from 1 to 50; and M 1 and M 2 are monovalent cations).

Inventors

• 👤 Takayuki Kao Corporation Ikenaga
• 👤 Atsuhito Kao Corporation MORI
• 👤 Hiroyuki Kao Corporation Aizawa
• 👤 Hiroki Kao Corporation SAWADA
• 👤 Yasuo Kao Corporation ISHII
• 👤 Yoshinori Kao Corporation Mitsuda

Bibliographic Details