Encapsulated fragrance chemicals
US7196049B2 · kind B2 · utility
47Cited by
51References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2003 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Sep 3, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/5426
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A polymeric encapsulated fragrance is disclosed which is suitable for use in personal care and cleaning products. In a preferred embodiment of the invention, the fragrance is encapsulated by a first polymer material to form a fragrance encapsulated polymer, the polymer encapsulated shell is then coated with a mixture of cationic polymers, in a preferred embodiment the coating polymers are a reaction product of polyamines and (chloromethyl) oxirane or (bromomethyl) oxirane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.