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:
Jul. 31, 2012
Filed:
Mar. 07, 2008
Applicant:
Russell Martin Thompson, Abingdon, GB;
Inventor:
Russell Martin Thompson, Abingdon, GB;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10L 1/22 (2006.01); C09K 3/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention concerns a two-stage process for the manufacture of a colloid of iron oxide, and results in the dispersion of the desired iron oxide particles within a carrier fluid by a mixture of mono- and polycarboxylic acids providing excellent properties to the colloid. The process also has the advantage of preserving the physical form of the iron oxide particles, allowing any desired properties of the iron oxide core (such as crystal form or magnetism) to be maintained within the colloid.