Edible products having inorganic coatings
US5741505A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 1995 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Jan 20, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23G2210/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An edible product having a thin inorganic coating on at least a portion of its surface. The coating preferably forms a moisture/oxygen barrier to result in a coated edible product having an improved shelf-life. The edible products include foods and pharmaceuticals. The inorganic materials used for the coating include SiO.sub.2, SiO, MgO, CaO, TiO.sub.2, ZnO and MnO. Processes and apparatuses for depositing a thin film of inorganic material onto an edible substrate are also disclosed. The preferred processes include sputtering and vapor deposition. The preferred apparatus provides for the continuous production of coated edible products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.