Title:
火炎加水分解で製造されるケイ素-チタン-混合粉末、その製法、それを含有する日焼け止め、および粉末の使用
Document Type and Number:
Japanese Patent JP4188676
Kind Code:
B2
Abstract:
Silicon/titanium (Si/Ti) mixed oxide powder (I) produced by flame hydrolysis, in which the SiO2/TiO2 weight ratio is greater on the surface of the primary particles than in the entire primary particles. Independent claims are also included for the following: (1) Production of (I) by feeding one stream of TiO2 precursor vapor, (gas containing) oxygen (O2) and hydrogen (H2) and a second stream of SiO2 precursor vapor and a carrier gas of O2, gas containing O2 and/or an inert gas separately into the reaction zone of a burner used for pyrogenic oxide production and combustion in this zone, then cooled the solid (I) and hot gas and separating the gas from (I); (2) Sun protection agent containing 0.01-25 wt.% (I).
Inventors:
Martin melters
Ina Heme
Stephen Hasenzer
Uwe Diner
Herbert Habermann
Ina Heme
Stephen Hasenzer
Uwe Diner
Herbert Habermann
Application Number:
JP2002372817A
Publication Date:
November 26, 2008
Filing Date:
December 24, 2002
Export Citation:
Assignee:
Evonik Degussa GmbH
International Classes:
C01B33/18; A61K8/00; G03G9/08; A61K8/25; A61K8/29; A61Q17/04; B01J35/02; C01G23/07; C08L83/04; C09C1/36; C09K3/00; C09K3/14
Domestic Patent References:
| JP9511985A | ||||
| JP6191848A | ||||
| JP8119620A | ||||
| JP7041315A | ||||
| JP2153816A | ||||
| JP49043896A |
Foreign References:
| WO2001056930A1 |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel