SOL COMPOSITION CONTAINING ORGANOMODIFIED CLAY MINERAL HAVING FLAKY PARTICLE STRUCTURE, OIL-BASE GEL COMPOSITIONS AND W/O EMULSION COMPOSITIONS CONTAINING THE SAME

摘要

The invention provides a sol composition comprising an oil and an organomodified clay mineral contained in the oil which mineral has a flaky particle structure having a mean thickness of 0.1µm or below and a mean length of 0.5 to 50µm; oil-base gel compositions; and W/O emulsion compositions. The organo- modified clay mineral in a state transformed into the flakey particles from aggregates exerts excellent oil-thickening and -gelling effect when used simultaneously with a nonionic surfactant. Further, the organomodified clay mineral having a flaky particle structure is also excellent in the emulsion stabilizing effect on W/O emulsions, which makes it possible to reduce the amounts of the organomodified clay mineral and nonionic surfactant used and thereby provide low-viscosity and stable W/O emulsions. Furthermore, the use of an oil having COOH/OH groups makes it possible to form an emulsion composition which is lowered in the viscosity while keeping the emulsion stability, thus giving emulsions which have low viscosity and excellent emulsion stability and are extremely excellent in feelings in use such as spreadability and freshness.