Devices and related method for the selective exposure of microencapsulated liquids
US5611972A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 1996 |
| Grant date | Mar 18, 1997 |
| Priority date | — |
| Expiry date | May 13, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24851
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A reusable device for exposing a microencapsulated liquid, e.g., a fragrance, comprising two surfaces adhered to each other by an adhesive composition, the adhesive composition comprising a non-film forming adhesive comprising a plurality of adhesive polymeric microparticles and microcapsules of an average diameter of about 5 .mu.m to about 60 .mu.m which have the liquid therein and which are adhered to each surface by the adhesive, wherein at least a portion of the microcapsules are broken when the surfaces are separated, and wherein the adhesive has the ability to readhere the surfaces to each other after the surfaces are separated and microcapsules broken. A method providing for the repeated, selective exposure of a microencapsulated liquid using the aforesaid device is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.