Encapsulated fragrance chemicals
AssigneeInternational Flavors & Fragrances Inc.
InventorsSydney William Bennett, Joseph Brain
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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.
Claims11
A composition comprising:
- a fragrance material;
- said fragrance material encapsulated by a polymer to provide a polymer encapsulated fragrance;
- the polymer encapsulated fragrance is further coated by a cationic polyamine polymer, said cationic polyamine polymer being a reaction product of polyamine and an oxirane material, wherein said oxirane material is selected from the group consisting of (chloromethyl) oxirane, (bromoethyl) oxirane and mixtures thereof.
A method for imparting an olfactory effective amount of fragrance into a wash-off product comprising:
- providing a fragrance material;
- encapsulating the fragrance material with a polymer to form a polymer encapsulated fragrance;
- providing a polyamine polymer to the surface of the polymer encapsulated fragrance to form a cationically coated polymer encapsulated material, said polyamine polymer being a reaction product of polyamine and an oxirane material;
- and providing the coated polymer encapsulated material to a rinse off product,
- wherein, said oxirane material is selected from the group consisting of (chloromethyl) oxirane, (bromoethyl) oxirane and mixtures thereof.
Dependencies are inferred from the claim text.