Tackified polymeric compositions for perfume delivery

Abstract

A polymeric composition comprising a copolymer obtained from at least one monomer comprising an ether group and at least one monomer not comprising an ether group, a tackifier, 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.

Description

Claims

1. A polymeric composition comprising: a) a copolymer obtained from at least one monomer comprising an ether group and at least one monomer not comprising an ether group,b) a tackifier,c) a volatile material.

2. A polymeric composition according to claim 1 comprising less than 10% of plasticizers.

3. A polymeric composition according to claim 1 wherein the copolymer comprises a polyether group and a non polyether group.

4. A polymeric composition according to claim 3 wherein the copolymer is a block copolymer and comprises at least a polyether block and at least a non polyether block.

5. A polymeric composition according to claim 4 wherein the block copolymer is a polyether polyamide block co-polymer.

6. A polymeric composition according to claim 1 wherein the tackifier comprises an ester group.

7. A polymeric composition according to claim 1 wherein the tackifier has a Tg higher than 50° C.

8. A polymeric composition according to claim 1 wherein the tackifier is selected from rosin and its derivatives which are solid at room temperature.

9. A polymeric composition according to claim 1 wherein the copolymer is from 5% to 75% by weight of the polymeric composition, the tackifier is from 20% to 150% by weight of the copolymer and the volatile material is more than 10% of the total weight of the composition.

10. A polymeric composition according to claim 1 wherein the volatile material is a perfume.

11. A polymeric composition according to claim 10 wherein the perfume comprises an aldehyde, a ketone, an alcohol, a terpene or an ester.

12. A process for the manufacturing of a closed container comprising the steps of applying a polymeric composition according to claim 1 onto a portion of its internal surface.