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.:

US 9663410 B1

PDF
Full Text
Expired
Date of Patent:
May. 30, 2017

Filed:

Dec. 28, 2012
Applicant:

K+s Kali Gmbh, Kassel, DE;

Inventors:

Ulrich Kleine-Kleffmann, Bad Hersfeld, DE;

Wolfgang Walczyk, Heringen, DE;

Assignee:

K+S Kali GmbH, Kassel, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C05C 9/00 (2006.01); C07C 273/02 (2006.01); C05D 9/00 (2006.01);
U.S. Cl.
CPC ...
C05C 9/00 (2013.01); C05D 9/00 (2013.01); C07C 273/02 (2013.01);
Abstract

The subject of the invention is a composition containing at least 80 wt. %, with reference to the total weight of the composition, of a magnesium-sulfate-urea compound of Formula (I):[MgSO.m CO(NH).n HO]  (I),in which m is in the range from 0.9 to 1.1 and n is in the range from 2.1 to 3.1, where the composition, with reference to the total weight of the composition, contains less than 10 wt. % free MgSOin the form of the anhydrate or in the form of urea-free hydrates of the magnesium sulfate, such as magnesium sulfate or magnesium-sulfate hexahydrate and/or less than 10 wt. % uncombined urea. In particular, m in Formula (I) indicates the value 1. In particular, n in Formula (I) indicates the value 3. The invention also concerns the manufacture of the compositions and their utilization as fertilizers or fertilizer additives.


Find Patent Forward Citations

Kleine-Kleffmann, Ulrich. (2017). Composition of a magnesium sulfate/urea compound (U.S. Patent No. 9663410). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9663410

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