Pre-vaporization formulation for controlling acidity in an e-vaping device
US10327472B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2015 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Oct 23, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/007
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A pre-vaporization formulation for an e-vaping device includes a vapor former, optionally water, nicotine, nicotine bitartrate and an acid. The pH of the pre-vaporization formulation is between about 4 and about 6. The acid can include one or more of pyruvic acid, formic acid, oxalic acid, glycolic acid, acetic acid, isovaleric acid, valeric acid, propionic acid, octanoic acid, lactic acid, sorbic acid, malic acid, tartaric acid, succinic acid, citric acid, benzoic acid, oleic acid, aconitic acid, butyric acid, cinnamic acid, decanoic acid, 3,7-diemthyl-6-octenoic acid, 1-glutamic acid, heptanoic acid, hexanoic acid, 3-hexenoic acid, trans-2-hexenoic acid, isobutyric acid, lauric acid, 2-methylbutyric acid, 2-methylvaleric acid, myristic acid, nonanoic acid, palmitic acid, 4-pentenoic acid, phenylacetic acid, 3-phenylpropionic acid, hydrochloric acid, phosphoric acid and sulfuric acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.