Controlled release polymer encapsulated fragrances
US11517511B2 · kind B2 · utility
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13References
11Claims
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Key dates
| Filing date | Mar 25, 2022 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Mar 25, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J13/14
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present disclosure relates to fragrance materials encapsulated within polymeric materials in the form of microcapsules of polymer encapsulated fragrance. The microcapsules are mixed with a water-based binding agent so that a coating forms on the microcapsule in situ, after which the coated microcapsules may be applied to hard surfaces of a product, from which controlled release of the fragrance is provided over time as the product is subjected to normal handling by a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.