Fertilizer compositions and methods of making the same

US9718738B2 · kind B2 · utility

Assignee

• ALCOA USA CORP. · US

Inventors

• David Iwig · Greensburg, US
• Raymond J. Kilmer · Lancaster, US
• Charles Dobbs · Massena, US
• Judodine Nichols · Murrysville, US
• John R. Smith · Pittsburgh, US
• Mark L. Weaver · Washington, US
• Shannon L. I. Parks · Sarver, US
• Mikhail Gershenzon · Murrysville, US

Key dates

• Filing date: Feb 20, 2015
• Grant date: Aug 1, 2017
• Expiry date: Feb 20, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C05G5/30
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Fertilizer compositions are provided, where a fertilizer composition includes: an inner portion including a nitrogen containing material; and an outer portion covering the inner portion, the outer portion including a release agent (e.g. HTC, BR).