The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 2010
Filed:
May. 15, 2006
Shinji Uemoto, Hiroshima, JP;
Shinji Uemoto, Hiroshima, JP;
Toda Kogyo Corporation, Hiroshima-shi, Hiroshima-ken, JP;
Abstract
There are provided black iron-based particles comprising iron/titanium composite oxide particles having a titanium element content (A) of 5 to 35% by atom based on an iron element content contained in the black iron-based particles, and a ratio of a titanium element content (B) (based on an iron element content contained in the portion dissolved) in a portion of the black iron-based particles, which is dissolved therefrom at an iron element dissolution percentage of 1% by weight, to the titanium content (A) of not less than 1.0. The black iron-based particles of the present invention are not only excellent in dispersibility, acid resistance, tinting strength and blackness, but also exhibit a less magnetization value. Also, the black paint and the rubber or resin composition of the present invention are excellent in acid resistance and blackness.