Process of making nanoemulsion

Patent metadata

Field	Value
Publication number	US-2025235400-A1
Application number	US-202519173964-A
Country	US
Kind code	A1
Filing date	Apr 9, 2025
Priority date	Dec 9, 2019
Publication date	Jul 24, 2025
Grant date	—

Abstract

The disclosure provides a nanoemulsion including an oil phase containing at least one cannabinoid and a water phase; wherein at least one of the oil phase and the water phase includes one or more emulsifying agents; and wherein the zeta potential of the nanoemulsion is less than about −10 mV. Further provided are processes for preparing such nanoemulsions.

First claim

1 . A nanoemulsion comprising:
(a) an oil phase containing at least one cannabinoid; and (b) a water phase;
wherein at least one of the oil phase and the water phase comprises one or more emulsifying agents, and
wherein a zeta potential of the nanoemulsion is less than about −10 mV.

2 . The nanoemulsion of claim 1 , comprising droplets of the oil phase dispersed in the water phase, the droplets having an average diameter from about 1 nm to about 200 nm.

3 . The nanoemulsion of claim 1 , wherein a weight ratio of the oil phase to the water phase is from about 2:1 to about 1:10.

4 . The nanoemulsion of claim 1 , wherein a weight ratio of the oil to the at least one cannabinoid is from about 1:1 to about 10:1.

5 . The nanoemulsion of claim 1 , wherein the oil phase comprises castor oil.

6 . The nanoemulsion of claim 1 , wherein the at least one cannabinoid is selected from the group consisting of cannabigerol (CBG), cannabichromene (CBC), cannabidiol (CBD), tetrahydrocannabinol (THC), cannabinol (CBN) and cannabinodiol (CBDL), cannabicyclol (CBL), cannabivarin (CBV), tetrahydrocannabivarin (THCV), cannabidivarin (CBDV), cannabichromevarin (CBCV), cannabigerovarin (CBGV), cannabigerol monomethyl ether (CBGM), cannabinerolic acid, cannabidiolic acid (CBDA), Cannabinol propyl variant (CBNV), cannabitriol (CBO), tetrahydrocannabmolic acid (THCA), tetrahydrocannabivarinic acid (THCV A), and mixtures thereof.

7 . The nanoemulsion of claim 1 , wherein the at least one cannabinoid comprises cannabidiol.

8 . The nanoemulsion of claim 1 , wherein the one or more emulsifying agents comprises a first emulsifying agent having an HLB value of from about 1 to about 9, and a second emulsifying agent having an HLB value of from about 10 to about 20.

9 . The nanoemulsion of claim 8 , wherein the first emulsifying agent is selected from the group consisting of glycol distearate, sorbitan trioleate, sorbitan tristearate, sorbitan triisostearate, glyceryl isostearate, propylene glycol isostearate, glycol stearate, sorbitan sesquioleate, glyceryl stearate, lecithin, sorbitan oleate, sorbitan monostearate, sorbitan stearate, sorbitan isostearate, steareth-2, oleth-2, polyethyleneglycol (PEG)-7 hydrogenated castor oil, laureth-2, sorbitan palmitate, laureth-3, glyceryl laurate, ceteth-2, PEG-30 dipolyhdroxystearate, glyceryl stearate self-emulsifying (SE), sorbitan stearate/sucrose cocoate, PEG-4 dilaurate, methyl glucose sesquistearate, PEG-8 dioleate, sorbitan laurate, PEG-40 sorbitan peroleate, and mixtures thereof.

10 . The nanoemulsion of claim 8 , wherein the second emulsifying agent is selected from the group consisting of laureth-4, polyethyleneglycol (PEG)-7 glyceryl cocoate, PEG-20 almond glycerides, PEG-25 hydrogenated castor oil, stearamide MEA, glyceryl stearate (and)/PEG-100 stearate, polysorbate 81, polysorbate 85, polysorbate 65, PEG-7 glyceryl cocoate, PEG-8 stearate, PEG-8 caprate, PEG-35 almond glycerides, PEG-6 laurate, laureth-7, steareth-10, isotrideceth-8, PEG-35 castor oil, isotrideceth-9, PEG-40 castor oil, ceteareth-12, laureth-9, PEG-40 hydrogenated castor oil, PEG-20 glyceryl isostearate, PEG-20 stearate, PEG-40 sorbitan perisostearate, PEG-7 olivate, cetearyl glucoside, PEG-8 oleate, polyglyceryl-3 methylglucose distearate, oleth-10, oleth-10/polyoxyl 10 oleyl ether, ceteth-10, PEG-8 laurate, cocamide monoethanolamide (MEA), polysorbate 60, polysorbate 80, isosteareth-20, PEG-60 almond glycerides, PEG-20 methyl glucose sesquistearate, ceteareth-20, oleth-20, steareth-20, steareth-21, ceteth-20, isoceth-20, polysorbate 20, polysorbate 40, ceteareth-25, ceteareth-30, PEG-30 stearate, laureth-23, PEG-75 lanolin, polysorbate 20, PEG-40 stearate, PEG-100 stearate, steareth-100, PEG-80 sorbitan laurate, polyoxyethylene stearates (e.g., polyoxyethylene (40) stearate), polyoxyethylene ethers, and mixtures thereof.

11 . An oral product containing the nanoemulsion of claim 1 .

12 . The oral product of claim 11 , further comprising a filler.

13 . The oral product of claim 12 , wherein a water activity of the oral product is no greater than about 0.85.

14 . A pouched oral product comprising:
a saliva permeable pouch; and the oral product of claim 12 , incorporated within the pouch.

15 . A package containing at least one pouched oral product as defined in claim 14 .

Assignees

• Nicoventures Trading Ltd

Inventors

• Gerardi Anthony Richard
• Poole Thomas H
• Alderman Steven Lee

Classifications

• A61K31/658

  o-phenolic cannabinoids, e.g. cannabidiol, cannabigerolic acid, cannabichromene or tetrahydrocannabinol · CPC title

• A61K47/12

  Carboxylic acids; Salts or anhydrides thereof · CPC title

• A24B13/00

  Tobacco for pipes, for cigars, e.g. cigar inserts, or for cigarettes; Chewing tobacco; Snuff (reconstituted tobacco products A24B3/14) · CPC title

• A61K47/14

  Esters of carboxylic acids, e.g. fatty acid monoglycerides, medium-chain triglycerides, parabens or PEG fatty acid esters · CPC title

• A61K47/44

  Oils, fats or waxes according to two or more groups of A61K47/02-A61K47/42; Natural or modified natural oils, fats or waxes, e.g. castor oil, polyethoxylated castor oil, montan wax, lignite, shellac, rosin, beeswax or lanolin (synthetic glycerides, e.g. medium-chain triglycerides, A61K47/14) · CPC title