US 12,129,215 B2
Solvent free method of producing urea adduct
Jonas Baltrusaitis, Allentown, PA (US); and Kenneth Edward Honer, Hellertown, PA (US)
Assigned to Lehigh University
Appl. No. 16/640,419
Filed by Lehigh University, Bethlehem, PA (US)
PCT Filed Aug. 21, 2018, PCT No. PCT/US2018/047215
§ 371(c)(1), (2) Date Feb. 20, 2020,
PCT Pub. No. WO2019/040427, PCT Pub. Date Feb. 28, 2019.
Claims priority of provisional application 62/548,145, filed on Aug. 21, 2017.
Prior Publication US 2020/0189987 A1, Jun. 18, 2020
Int. Cl. C05C 1/02 (2006.01); C05C 3/00 (2006.01); C05C 9/00 (2006.01); C05G 5/40 (2020.01)
CPC C05C 9/005 (2013.01) [C05C 1/02 (2013.01); C05C 3/005 (2013.01); C05G 5/40 (2020.02)] 21 Claims
OG exemplary drawing
 
1. An agricultural composition comprising:
a crystalline material having a crystalline matrix, the crystalline material comprising an adduct of urea comprising:
urea; and
an inorganic salt comprising calcium sulfate;
wherein the crystalline material has an average particle size ranging from about 0.1 microns to about 10 microns, wherein the adduct has a surface area ranging from about 1 m2/g to about 5 m2/g.