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:
Jan. 21, 2003
Filed:
Aug. 31, 2001
Applicant:
Inventor:
Ulrich Meisen, Kall, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 1/40 ;
U.S. Cl.
CPC ...
C09K 1/40 ;
Abstract
The present invention relates to a process for the production of an aluminum-containing iron oxide crystallization nucleus with a &agr;-FeOOH crystal structure from FeCl . This nucleus is suitable as starting material for the production of iron oxide red (&agr;-Fe O ) via &agr;-FeOOH as an intermediate product.