Sealing element for vessel or container closures having...

Details Sealing element for vessel or container closures having... Sealing element for vessel or container closures having...

2002-05-03

2009-12-29

Dye, Rena L (Department: 1794)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C428S034100, C428S036400, C428S036600, C428S036700, C428S036800, C428S036920, C215S200000, C215S328000, C215S341000

Reexamination Certificate

active

07638179

ABSTRACT:
Described is a closure element for a container. The closure elements has a sealing element which contains a thermoplastic polymer, and an effective absorbing amount of an unmodified cyclodextrin material. The unmodified cyclodextrin material may be an α-cyclodextrin, β-cyclodextrin, γ-cyclodextrin, and mixtures thereof. The sealing element can act as a barrier with respect to permeants, such as aromatic substances, trichloroanisole, aldehydes or ketones and/or impurities from the polymer.

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patent: WO 01/30412 (2001-05-01), None

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