Methods of making unit-dose products with supercooling
US11414634B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2020 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Aug 3, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D65/46
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a method for producing a unit-dose capsule which includes optionally forming the first film into the shape of a first cavity, supercooling a first component to a temperature at which the equilibrium state of the first component is a solid or semi-solid, dispensing the first component in a supercooled state into the first cavity, such that the first component gels to form at least one layer of gel adhered to and/or in contact with the first film, forming a second film into the shape of a second cavity, filling the second cavity with a second component, sealing the first film to the second film to form a sealed cavity having at least one chamber containing the first component and the second component. The method may further include wetting and perforating the first film. The unit-dose capsule includes the sealed container and the two components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.