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:
Dec. 26, 2017
Filed:
May. 13, 2014
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Markus Christian Biel, Mannheim, DE;
Thomas Greindl, Maxdorf, DE;
Markus Hartmann, Neustadt, DE;
Wolfgang Staffel, Otterstadt, DE;
Marta Reinoso Garcia, Dossenheim, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C11D 3/20 (2006.01); C11D 3/33 (2006.01); C11D 3/34 (2006.01); C11D 7/32 (2006.01); C11D 7/26 (2006.01); C11D 7/34 (2006.01);
U.S. Cl.
CPC ...
C11D 3/33 (2013.01); C11D 3/2079 (2013.01); C11D 3/3409 (2013.01); C11D 7/264 (2013.01); C11D 7/3245 (2013.01); C11D 7/34 (2013.01);
Abstract
Aqueous solution comprising (A) in the range of from 30 to 60% by weight of a complexing agent, selected from the alkali metal salts of methylglycine diacetic acid and the alkali metal salts of glutamic acid diacetic acid, (B) in the range of from 1 to 25% by weight of at least one salt of a sulfonic acid or of an organic acid, percentages referring to the total respective aqueous solution.