To obtain an emulsion having low viscosity in spite of the high content of silicone and excellent stability in spite of its super large particle size by blending a high-polymerization-degree organopolysiloxane, a surfactant, and water at a specific ratio.
An emulsion having an average particle size of 0.1-1.0 mm is obtained by blending 70-90 wt.% of a high-polymerization-degree organopolysiloxane having a viscosity (25°C) of at least 1×105 mPa.s of formula I (wherein R1 is a 1-20C organic group; and 1.8≤a≤2.2) or a mixture of 10-90 wt.% of this organopolysiloxane and 10-90 wt.% of a silicone having a viscosity (25°C) of 2-1,000 mm2/s of formula I or a volatile hydrocarbon solvent having a boiling point of 60-260°C, 1-15 wt.% of a surfactant selected from a cationic surfactant of formula II (wherein at least one of R2 is a 12-22 alkyl or alkenyl; the rest are a 1-5 alkyl or benzyl; and X is a halogen or an organic anion), an anionic surfactant and a nonionic surfactant, and 5-25 wt.% of water.
| WO/2003/040073 | ALKYL(EN)YLGLYCERINETHER CARBOXYLIC ACIDS |
| WO/2024/097540 | LOW VISCOSITY NONAQUEOUS METAL OXIDE PARTICLE DISPERSIONS AND PROCESSES FOR PREPARING SAME |
| WO/2014/106603 | HAIR CARE COMPOSITION |
NEZU SACHIKO
NAKAZATO MORIZO
