# US 11,026,915 B2 · Preparation of a solution of cannabinoids for personal vaping

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- Number: US 11,026,915 B2
- Document ID: US11026915B2
- Status: Granted
- Kind: B2
- Application number: 15/886,740
- Filed: 2018-02-01
- Published: 2019-08-29
- Granted: 2021-06-08
- Earliest claimed: 2017-04-24
- Assignees: 1091665 B.C. Ltd.
- Applicants: 1091665 Bc Ltd.
- Inventors: Deryl Townsend; Haydn Wilford; Ian Hillier-Brook
- Web page: https://patentgrep.com/patent/US11026915B2

## CPC

- A61K 31/658: {o-phenolic cannabinoids, e.g. cannabidiol, cannabigerolic acid, cannabichromene or tetrahydrocannabinol}
- A24F 40/42: Cartridges or containers for inhalable precursors
- A61K 9/007: {Pulmonary tract; Aromatherapy}
- A61K 36/3482: {Cannabis}
- A61K 47/10: Alcohols; Phenols; Salts thereof, e.g. glycerol; Polyethylene glycols [PEG]; Poloxamers; PEG/POE alkyl ethers
- A24F 40/10: Devices using liquid inhalable precursors
- A61K 2236/00: Isolation or extraction methods of medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicine
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06)

## Abstract

The present invention comprises a method of manufacturing a cannabinoid solution including adding to a cannabis source comprising a cannabis distillate or a full spectrum alcohol extracted cannabis oil, adding a PEG, forming a mixture; and adding a PG to the mixture, forming the cannabinoid solution suitable for vaporization and inhalation to administer active cannabis compounds to a person in need thereof.

## Claims

### Claim 1

A method for producing a vaporizable cannabinoid solution comprising:
preparing a solvent extract of a cannabis starting material;
filtering precipitate from the solvent extract;
distilling the solvent extract by heating the solvent extract to generate vapors and condensing the vapors at a vapor temperature in the range of 220° C. to 240° C. under a vacuum in the range of 0.1 TORR to 0.3 TORR to obtain a cannabis distillate containing a cannabinoid;
adding the cannabis distillate to polyethylene glycol (PEG) to form a mixture; and
combining the mixture with propylene glycol (PG) to form the solution.

### Claim 2 (depends on 1)

The method of claim 1, wherein the method further includes adding a flavoring.

### Claim 3 (depends on 1)

The method of claim 1, wherein the method includes adding the PEG in a ratio of 3:1 to 1:1 of the PEG to the cannabinoid, respectively.

### Claim 4 (depends on 1)

The method of claim 1, wherein the method includes adding the PG in a ratio of 200:1 to 1:1 of the PG to the mixture, respectively.

### Claim 5 (depends on 1)

The method of claim 1, wherein the cannabis distillate is substantially free of terpenes.

### Claim 6 (depends on 1)

The method of claim 1, wherein the heating results in decarboxylation, such that the cannabinoid in the cannabis distillate is fully decarboxylated.

### Claim 7 (depends on 1)

The method of claim 1, wherein the cannabinoid in the cannabis distillate is fully converted from tetrahydrocannabinol acid to THC.