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US 12,410,378 B2Granted
Methods of making pol yurea powders, gels and greases, and related compositions made therefrom
AssigneeNovitas Chem Solutions
InventorLiwen Wei
Life of this patent
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Abstract
A food package comprising a container having a sealed top layer and comprising a fresh, preservative-free food product comprising chickpeas, such as hummus, which includes no preservatives and exhibits total yeast and mold counts of less than 10 CFU/g at 28 days after production when stored at 2° C. to 8° C. The package includes a headspace between the fresh hummus and the top sealing layer, the headspace comprising a modified atmosphere which is nitrogen rich, such as 70% N2:30% CO2.
Claims29
A method of making a urea containing powder, comprising:
- injecting at least one liquid amine and at least one liquid isocyanate simultaneously into a mixing chamber, said mixture chamber comprising at least one high pressure impingement mixing device;
- mixing the at least one amine and the at least one isocyanate in the at least one high pressure impingement mixing device at a pressure of at least 2500 psi for a time sufficient to form a first urea containing powder, said time is less than 10 seconds, wherein the first urea containing powder has an average particle size (D50) represented as D1, and molecular weight distribution (D90-D50) represented as DD1;
- feeding the first urea containing powder into a sizing device to form a second urea containing powder with an average particle size (D50) represented as D2, wherein D2 is less than D1, and molecular weight distribution (D90-D50) represented as DD2, wherein DD2 is less than DD1,
- wherein the second urea containing powder composition has a stoichiometric mole ratio of isocyanates and amine functionalities.
1 more element
Dependencies are inferred from the claim text.