US 12,458,676 B2
Oil extract of cannabis and method for obtaining
Toby W. Laughton, Woodland Hills, CA (US); Darren J. Nist, Riverside, CA (US); Steven M. Shatkin, Mammoth Lakes, CA (US); Tony LaRosa, Woodland Hills, CA (US); and David Reid, Woodland Hills, CA (US)
Filed by Concept Matrix Solutions, Newbury Park, CA (US)
Filed on Dec. 18, 2023, as Appl. No. 18/544,077.
Application 18/544,077 is a continuation of application No. 18/067,944, filed on Dec. 19, 2022, granted, now 11,844,819.
Application 18/067,944 is a continuation of application No. 17/177,532, filed on Feb. 17, 2021, granted, now 11,541,089, issued on Jan. 3, 2023.
Claims priority of provisional application 62/978,603, filed on Feb. 19, 2020.
Prior Publication US 2024/0115639 A1, Apr. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61K 36/185 (2006.01); A61K 31/352 (2006.01); B01D 11/02 (2006.01); B01D 29/27 (2006.01)
CPC A61K 36/185 (2013.01) [A61K 31/352 (2013.01); B01D 11/0288 (2013.01); B01D 29/27 (2013.01); A61K 2236/15 (2013.01); A61K 2236/35 (2013.01); A61K 2236/53 (2013.01)] 18 Claims
 
1. A method for obtaining a purified oil of cannabis, the method comprising:
(a) reducing the size of cannabis biomass such that at least 90 wt. % of the cannabis biomass is less than 2.5 mm,
(b) contacting the cannabis biomass with an edible oil which is not cannabis oil,
(c) steeping at a temperature of 50-180° C. the cannabis biomass and the edible oil,
(d) pressing between two substantially flat plates, at a temperature of 20-150° C. and a pressure of 1,000-100,000 psi, the cannabis biomass and the edible oil in an enclosure, sufficient to release from the cannabis biomass into the edible oil, one or more cannabinoids, one or more terpenes, or a combination thereof, to provide spent cannabis and an oil extract of cannabis,
(e) separating the spent cannabis biomass from the oil extract of cannabis,
(f) collecting the oil extract of cannabis in a receptacle;
(g) contacting the oil extract of cannabis with carbon black in an amount of 0.5±0.2 grams of carbon black per 100 grams of the oil extract of cannabis, to provide a purified oil extract of cannabis, and
(h) separating the carbon black from the purified oil extract of cannabis to produce a purified oil of cannabis.