IP Library › Granted Patent US 12679784
Granted Patent B2
US 12679784 · App. 18/605,978 · Granted Jul 14, 2026

Spherical urea-aldehyde condensate fertilizers

Inventors: Rajamalleswaramma Koripelly (Bangalore, IN); Satish Burla (Bangalore, IN); Radha Achanath (Bangalore, IN); Samik Gupta (Bangalore, IN)
Assignee: SABIC AGRI-NUTRIENTS COMPANY
C05C9/02C05G3/30C05G5/12
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Quick Facts
Patent No.
US 12679784
App. No.
18/605,978
Granted
Jul 14, 2026
Kind
B2
Abstract

Fertilizers that contain urea-aldehyde condensates. The fertilizer can be spherical and can be formed using a granulation and/or spheronization technique and optionally can be an extruded fertilizer that is spheronized.

Claims (13)

1 . A fertilizer composition comprising a spherical urea-C1-C4 aldehyde condensate fertilizer granule, wherein the granule having an average diameter of 1 mm to 3.5 mm and an average crush strength of greater than 1.3 kgf/granule, wherein the urea-C1-C4 aldehyde condensate comprises methylene urea-isobutylidenediurea (MU-IBDU), or a derivative thereof.

2 . The fertilizer composition of claim 1 , having an average diameter of 2 mm to 3.5 mm and a crush strength of 2 kgf/granule to 3.5 kgf/granule.

3 . The fertilizer composition of claim 1 , wherein the fertilizer granule is an extruded fertilizer granule.

4 . The fertilizer composition of claim 1 , wherein the composition is a fertilizer blend or a compounded fertilizer.

5 . The fertilizer composition of claim 1 , wherein the composition further comprises a micronutrient.

6 . The fertilizer composition of claim 1 , having a crush strength of 1.3 kgf/granule to 2 kgf/granule.

7 . The fertilizer composition of claim 1 , having a crush strength of 2.2 kgf/granule to 3.5 kgf/granule.

8 . The fertilizer composition of claim 1 , having an average diameter of 2 mm to 3.5 mm.

9 . The fertilizer composition of claim 1 , having a crush strength of 1.3 kgf/granule to 3.5 kgf/granule.

10 . The fertilizer composition of claim 1 , wherein the urea-C1-C4 aldehyde condensate comprises methylene urea-isobutylidenediurea (MU-IBDU).

11 . The fertilizer composition of claim 10 , wherein the fertilizer granule is an extruded fertilizer granule.

12 . A method of fertilizing, the method comprising applying the fertilizer composition of claim 1 to a portion of a soil, a crop, or the soil and the crop.

13 . The fertilizer composition of claim 1 , wherein the composition does not comprise a phosphorus.