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US 8,043,606 B2Granted
Polymeric compositions for sustained release of volatile materials
AssigneeThe Procter & Gamble Company
InventorsCalum MacBeath, Italo Corzani, Lamia Delphine Mimassi
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Abstract
A polymeric composition comprising a copolymer of ethylene with at least another monomer comprising at least a heteroatom, a tackifier, less than 10% of a compatible plasticizer or blend of plasticizers and a volatile material. The compositions are able to deliver effectively the volatile material incorporated for a long time and also have good adhesion properties on most substrates.
Claims3
A homogeneous polymeric hot melt adhesive composition having a melting point of between about 60° C. to about 80° C. comprising:
- a) a copolymer of ethylene with vinyl acetate
- b) a tackifier which is a rosin that is solid at room temperature, and
- c) a perfume at a level more than 20% of the total weight of the composition, said composition containing less than 10% by weight of plasticizer.
Dependencies are inferred from the claim text.