Chemistry: fertilizers – Processes and products – Inorganic material
Reexamination Certificate
2011-07-26
2011-07-26
Langel, Wayne (Department: 1736)
Chemistry: fertilizers
Processes and products
Inorganic material
C071S063000, C071S064100
Reexamination Certificate
active
07985276
ABSTRACT:
Liquid fertilizer compositions and methods of making liquid fertilizer compositions are set forth herein. In one embodiment, a liquid fertilizing composition includes an aqueous ammonium chloride solution having a pH between 6.5 and 8.5, a dispersant selected from anionic polyacrylamides, and a corrosion inhibitor. In another embodiment, a liquid fertilizing composition includes an aqueous solution having a pH between 6.5 and 8.5. The solution includes at least 16.5 percent by weight of ammonium chloride and between 0.5 and 1.0 percent by weight of dispersant. In yet another embodiment, a liquid fertilizing composition has a pH between 7.5 and 8.5. The composition consists essentially of at least 16.5 percent by weight ammonium chloride, between 0.5 and 1.0 percent by weight dispersant, an effective amount of corrosion inhibitor, and water.
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Select File History from related U.S. Appl. No. 12/060,644, dated Aug. 24, 2009 through Nov. 5, 2009, 24 pages.
Langel Wayne
Lathrop & Gage LLP
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