Title:
IRON-CONTAINING ULTRAFINE PARTICULATE TITANIUM DIOXIDE DISPERSION
Document Type and Number:
Japanese Patent JP3115760
Kind Code:
B2
Abstract:
PURPOSE: To obtain the subject dispersion suitable for producing cosmetics or coatings having excellent ultraviolet light-screening performance.
CONSTITUTION: This dispersion is an aqueous or oily dispersion comprising an aqueous or oily dispersion medium, iron-contg. ultrafine particulate titanium dioxide and a dispersant. In this case, the iron-contg. ultrafine particulate titanium dioxide has 0.01-0.1μm average single particle diameter and its crystal contains therein 1-30wt.% of iron components in terms of Fe, based on the TiO2. The dispersion can easily form a high-dispersion degree formulaiton system in cosmetics or coatings by using the iron-contg. ultrafine particulate titanium dioxide, being esp. suitable esp. in such a case that application of moderate dispersion energy is desired as in the case of cosmetic system. Besides, the resultant ultraviolet light-screening performance becomes more preferable when such iron-contg. ultrafine particulate titanium dioxide powder is formulated in cosmetics or coatings; in particular, in cosmetic system, this dispersion is highly suitable for suppressing bluish feeling and improving feeling in use and stability.
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Inventors:
Haruo Okuda
Hideo Futamata
Masanori Iida
Hideo Futamata
Masanori Iida
Application Number:
JP34143093A
Publication Date:
December 11, 2000
Filing Date:
December 10, 1993
Export Citation:
Assignee:
Ishihara Sangyo Co., Ltd.
International Classes:
A61K8/30; A61K8/00; A61K8/19; A61K8/29; A61K8/92; A61Q1/02; A61Q17/04; C01G23/053; C09C1/36; C09D5/00; C09D5/33; (IPC1-7): A61K7/02; A61K7/42; C01G23/053; C09C1/36; C09D5/33
Domestic Patent References:
| JP4867196A | ||||
| JP647941A | ||||
| JP643020A |