Smoking article with liquid delivery material
US10694778B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2014 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Dec 12, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24D1/002
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A smoking article (10) incorporates a liquid release component of a sustained release liquid delivery material (20), the liquid delivery material comprising a closed matrix structure having a polymer matrix defining a plurality of domains. A liquid composition is trapped within the domains and is releasable from the closed matrix structure upon compression of the liquid release component. The polymer matrix is formed of one or more anionic polysaccharides cross-linked by multivalent cations. A filler comprising one or more amphiphilic polysaccharides is incorporated within the polymer matrix. The one or more amphiphilic polysaccharides of the filler are selected from starch chemically modified to be amphiphilic and starch derivatives chemically modified to be amphiphilic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.