IP Library Granted Patent US 8,101,548
Granted Patent B2
US 8,101,548 · App. 11/228,648 · Granted Jan 24, 2012

Urea phosphite

Assignee: LidoChem, Inc.
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Quick Facts
Patent No.
US 8,101,548
App. No.
11/228,648
Granted
Jan 24, 2012
Kind
B2
Abstract

Urea Phosphite is a new composition of matter useful as a fertilizer and as a fungicide. It is made by reacting phosphorous acid with urea. Urea Phosphite is characterized by being a liquid produced in an unprocessed reaction, and by having phosphite as a phosphorus source and urea as a nitrogen source. The reaction products may be separated, blended with an admix and spray dried, or, dissolved in water.

Claims (6)

1. A liquid composition of matter consisting of urea phosphite prepared by:

mixing a solid urea with a solid phosphorous acid at a temperature in the range of about 15° C. to about 100° C., wherein the urea and phosphorous acid are in a molar ratio of urea to phosphorous acid ranging from about 2:1 to about 1:2, and

without adding water, allowing a clear, colorless liquid indicating urea phosphite to form from said mixture of solids.

2. The composition of matter of claim 1 having the following chemical formula: CO(NH 2 ) 2 .H 3 PO 3 .

3. The composition of claim 1 prepared at room temperature.

4. The composition of claim 1 wherein the urea and phosphorous are blended for an hour.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 25, 2025
From: LIDOCHEM, INC.
To: LIDOCHEM LLC
Reel/Frame 070617/0083 →
SECURITY INTEREST Recorded Apr 15, 2024
From: LIDOCHEM LLC
To: MONROE CAPITAL MANAGEMENT ADVISORS, LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 067109/0014 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 17, 2005
From: DEAN, FRANK WILLIAM
To: LIDOCHEM, INC.
Reel/Frame 017013/0246 →
Continuity (2)
Provisional Application 60610747 · Sep 17, 2004
Related Publication 20060063675A1 · Mar 23, 2006