Amphiphilic co-polymer conjugates for a controlled release of active molecules
US8383750B2 · kind B2 · utility
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1References
16Claims
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Assignee
Inventors
Key dates
| Filing date | Jun 23, 2006 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Nov 18, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/57
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to the field of perfumery. More particularly, it concerns polyethylene or polypropylene based polymers that have at least one β-oxy or β-thio carbonyl moiety capable of liberating a perfuming molecule such as, for example, an α,β-unsaturated ketone, aldehyde or carboxylic ester. The present invention concerns also the use of such compounds in perfumery as well as the perfuming compositions or perfumed articles that include such compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.