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Processes and apparatus for extraction of active substances and enriched extracts from natural products
US10195159B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10195159-B2 |
| Application number | US-201514674098-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 31, 2015 |
| Priority date | May 4, 2001 |
| Publication date | Feb 5, 2019 |
| Grant date | Feb 5, 2019 |
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- Title
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- Abstract
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Abstract
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Processes for preparing extracts of natural products such as plant material, and for preparing purified extracts from crude extracts of natural products, by extraction with hot gas. Apparatus suitable for use in preparing extracts of natural products are also described.
First claim
Opening claim text (preview).
The invention claimed is: 1. A cannabinoid-rich extract which is substantially free of volatile terpenes and ballast, and has a high content of cannabidiol (CBD) and only trace amounts of tetrahydrocannabinolic acid (THCA) and cannabidiolic acid (CBDA), and wherein the majority of the cannabinoids are present in the decarboxylated neutral form. 2. The cannabinoid-rich extract as claimed in claim 1 , wherein said extract has a profile by gas chromatographic analysis that comprises peaks as defined by retention times in one of the following sets of peaks: (1) 35.7±1 minute (CBD); (2) 24.1±1 minute, 35.9±1 minute (CBD), and 49.7±1 minute; (3) 32.1±1 minute, 35.7±1 minute (CBD), and 43.5±1 minute; or (4) 35.7±1 minute (CBD), and 45.8±1 minute. 3. The cannabinoid-rich extract as claimed in claim 1 , wherein said extract has a profile by gas chromatographic analysis that comprises peaks as defined by the following retention times: 32.1±1 minute, 35.7±1 minute (CBD), and 43.5±1 minute. 4. The cannabinoid-rich extract as claimed in claim 1 , wherein said extract comprises about 98% (w/w) cannabidiol (CBD), 1.5% (w/w) tetrahydrocannabinol (THC), 0.5% (w/w) cannabinol (CBN) and only trace amounts of ballast. 5. The cannabinoid-rich extract as claimed in claim 1 , wherein said extract is substantially free of tetrahydrocannabinol (THC).
Assignees
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Classifications
Flow sheets · CPC title
in rotating drums · CPC title
Extraction using a solvent in the gas phase · CPC title
Applications, solvents · CPC title
in towers, e.g. comprising contacting elements · CPC title
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Frequently asked questions
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- What does patent US10195159B2 cover?
- Processes for preparing extracts of natural products such as plant material, and for preparing purified extracts from crude extracts of natural products, by extraction with hot gas. Apparatus suitable for use in preparing extracts of natural products are also described.
- Who is the assignee on this patent?
- Gw Pharma Ltd
- What technology area does this patent fall under?
- Primary CPC classification A61K31/05. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Feb 05 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).