Miyoshi Kasei, Inc.

Shiseido Company, Limited

U.S. Cosmetics Corporation

Masaakira Horino

Yukio Hasegawa

Miwa Nishizawa

Hideki Takahashi

Yasushi Takeuchi

Sadaki Takata

Katsuki Ogawa

Shigeru Kishida

Isao Imai

Masaru Kobayashi

William Zavadoski

Shinya Kuwazuru

Miwa Ohara

Tohgo Murata

By coating the surface of a powder comprising a silicone resin and/or an organic powder with a specific hydrophilizing agent, such powder is hydrophilized. Such coated (treated) powder has extremely great dispersibility (ease of dispersion) and very good dispersion stability (long-term dispersion stability with lapse of time) in aqueous dispersion media, particularly under acidic and alkaline conditions, specifically at pH 3 through 13. Using the surface-treated powder, additionally, a dispersion with good dispersibility (ease of dispersion) and great dispersion stability, preferably for cosmetics can be provided. The use of the surface-treated powder, or the use of the dispersion can provide further a cosmetic excellent in dispersibility and dispersion stability and further in re-dispersibility and dispersion stability with lapse of time and smooth feeling as compared to the related art when selecting aqueous cosmetic as an agent form.

Hydrophilized surface-treated powder and cosmetics containing same

A surface of particles of a silicone resin is treated with a low-molecular organosilicon derivative, with or without a water-soluble cationic polymer to improve the hydrophilicity of the silicone resin. The thus-treated powder is quite excellent in dispersibility (readily dispersible) and in dispersion stability in an aqueous dispersion medium. The use of the surface-treated powder provides a dispersion for cosmetic, excellent in dispersibility and dispersion stability and the like. The use of the surface-treated powder, or the use of the dispersion provides further a cosmetic excellent in dispersibility and dispersion stability, and further excellent in ease of re-dispersion and dispersion stability with lapse of time when selecting aqueous cosmetic as an agent form, and also excellent in smooth feeling in comparison with ordinary products.

Cosmetics

A composite powder containing a powdery base and aluminum hydroxide adhered to at least a portion of the surface of the base, wherein said adhered aluminum hydroxide in the form of a spherical and net structure is comprised preferably in a large amount. In case of using in powdery cosmetics, this composite powder hides wrinkles, pore openings and hard texture of the skin, and thus maintains the correcting effect of the troubled morphology of the skin. Thus, it exerts excellent effects of imparting natural gloss and color tone to the makeup coating without darkness, being superior in a feeling of 'elasticity' and transparency, and the like, compared to the conventional products. The effect of the above object can be more enhanced by the surface treatment such as a further surface treatment by silicon on the surface of said composite powder.

Composite powders and cosmetics containing the same

A powder comprising a core powder, a hydroxyapatite layered directly on the core, and zinc layered directly on the hydroxyapatite, suitable for use in cosmetics. The powder has a light reflection curve similar to that of the surface of the skin so that it exhibits good skin feeling and is superior in long wear effect for makeup and antibacterial effect. The powder is also superior in adsorbing, solidifying, or congealing the sebum components or body odor components, and is useful as an effective component for a sebum-adsorbent agent, a body deodorant or the like in addition to cosmetics.

Sebum-adsorbent powder and use thereof

Composite pigment and cosmetics containing the same

Powdered base material treated with organic silicon compounds and their method for producing

Cosmetic compositions and cosmetics which have good dispersibility, high UV protection effect that lasts for a long period and high stability with suppressed optical activity and catalytic activity. The cosmetic contains 10.5 weight % of a composition comprising fine-grain titanium oxide (mean particle size 0.9 .mu.m) treated with 5% methylhydrogenpolysiloxane, zinc oxide (mean particle size 2.5 .mu.m) treated in the same manner and talc (mean particle size 4 .mu.m) treated in the same manner.

Compositions for cosmetics and cosmetics

A dispersion of a moisture-retaining agent for use in a cosmetic article is disclosed which is characterized by having dispersed in the moisture-retaining agent an inorganic ultraviolet intercepting material having the molecules of the moisture-retaining agent adsorbed thereon by a mechanochemical reaction. This dispersion manifests an excellent ability to disperse the inorganic ultraviolet intercepting material, affords a highly effective protection against ultraviolet light, and exhibits excellent stability in a cosmetic article. A cosmetic article containing the dispersion is also disclosed.

Dispersion of ultraviolet intercepting moisture-retaining agent and

An aqueous slurry for cosmetic products, which comprises particles of pigments and/or extender pigments having a lipophilic moiety attached to the surface thereof and a cosmetically acceptable oily material dispersed in a liquid suspending medium consisting essentially of water.

Slurry composition for cosmetic product and method of use

Cosmetics having good dispersibility, high sustained ultraviolet light ray shielding, suppressed photochemical reactivity and catalytic activity of the ultraviolet ray shielding material and high stability. A milky lotion containing fine particles of zinc oxide surface-modified with 5% dimethyl polysiloxane (mean particle size, 1.6.mu.) and titanium oxide surface-modified with 5% dimethyl polysiloxane (mean particle size, 1.2.mu.).

Growing community of inventors

Kanagawa, Japan

Masaakira Horino