Instant coffee containing packet and method of forming
US4478858A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1982 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | Feb 8, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2307/7265
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
In combination, a predetermined quantity of particulate soluble beverage product, a predetermined quantity of aroma oil containing aromatic volatiles and a flexible air-tight packet for housing said particulate beverage product and said aroma oil for an extended period of time without substantial degradation in the quality or substantial decrease in the quantity of aromatic volatiles present in said aroma oil and said beverage product. In a particularly preferred embodiment the particulate soluble beverage product comprises instant coffee and the aroma oil comprises coffee aroma oil. Said packet preferably comprises at least two layers of a flexible sheet material which is substantially impervious to the passage of gas and liquid, said flexible sheet material having at least one surface which is substantially inert to the aromatic volatiles contained in said coffee aroma oil and said particulate soluble coffee product. The layers of flexible sheet material are superposed on one another so that said coffee aroma oil and said particulate soluble coffee product contained intermediate said layers contacts only the substantially inert surfaces of said sheet material. The layers are cont…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.