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    • 13. 发明专利
    • SOL COMPOSITION
    • JPH11217211A
    • 1999-08-10
    • JP3417498
    • 1998-01-30
    • SHISEIDO CO LTD
    • YOSHIKAWA NORINOBUONO KAZUHISA
    • C01B33/145
    • PROBLEM TO BE SOLVED: To obtain a sol composition with high antisepticity and mouldproofness even under alkaline conditions, also excellent in freeze stability, by incorporating a sol composition with each specific amount of phenoxyethanol, 1,3-butylene glycol and silica. SOLUTION: This sol composition is obtained by incorporating a sol composition with 0.5-2 (pref. 1-2) wt.% of phenoxyethanol, 5-20 (pref. 10-20) wt.% of 1,3-butylene glycol and 0.1-50 (pref. 10-40) wt.%, on a solid basis, of silica; wherein both the phenoxyethanol and 1,3-butylene glycol may be of such grade as to be ordinarily used in cosmetics; and the silica to be used is pref. in the form of silica sol dispersed in a solvent in view of the production of the composition. Specifically, this sol composition can be favorably produced by gradually adding both the phenoxyethanol and 1,3-butylene glycol to a silica sol under agitation.