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:
Sep. 17, 2002
Filed:
Jul. 11, 2001
Applicant:
Inventor:
David A. Wilson, Richwood, TX (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 3/00 ; C09K 1/520 ; C11D 7/32 ; C11D 7/60 ;
U.S. Cl.
CPC ...
C09K 3/00 ; C09K 1/520 ; C11D 7/32 ; C11D 7/60 ;
Abstract
A stable free-flowing solid chelant composition is produced by the process comprising the steps of: a) adjusting the pH of an aqueous solution of the chelant to a value of from about 1.2 to about 3.0 by the addition of an inorganic acid; and b) drying the pH adjusted aqueous chelant product.