Title:
TITANIUM OXIDE BASED COMPOUND HAVING PHOTOCHROMISM AND PRODUCTION THEREOF
Document Type and Number:
Japanese Patent JP3213996
Kind Code:
B2
Abstract:
PURPOSE: To provide excellent photochromic characteristics to a titanium oxide based compound by mixing an organotitanium compound with a specific metal compound and burning the mixture in the presence of a sodium compound.
CONSTITUTION: An organotitanium compound is mixed with at least one kind of metal of iron, chromium, copper, nickel, vanadium and manganese or metal compound thereof. The mixture is burned at about 500-750°C in the presence of a sodium compound. Thereby a titanium oxide based compound containing titanium compound of 85.0-98.8wt.% expressed in terms of titanium oxide, sodium compound of 1.0-7.0wt.% expressed in terms of sodium oxide and at least one kind of metal compound of iron, chromium, copper, nickel, vanadium and manganese of 0.02-8.0wt.% expressed in terms of metal oxide is obtained.
Inventors:
Isao Oizumi
Hiroyuki Fujita
Hiroyuki Fujita
Application Number:
JP29731391A
Publication Date:
October 02, 2001
Filing Date:
November 13, 1991
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
International Classes:
A61K8/30; A61K8/19; A61K8/29; A61Q1/02; C01G23/00; C01G49/00; C09D5/00; C09K9/00; (IPC1-7): C01G23/00; A61K7/02; C09K9/00
Domestic Patent References:
| JP63132811A | ||||
| JP60176906A |
Attorney, Agent or Firm:
Mitsuhiro Moroishi (1 person outside)
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