The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 29, 2009
Filed:
May. 03, 2002
Applicants:
Will Wood, Arden Hills, MN (US);
Neil Beaverson, Vadnais Heights, MN (US);
Inventors:
Will Wood, Arden Hills, MN (US);
Neil Beaverson, Vadnais Heights, MN (US);
Assignee:
Cellresin Technologies, LLC, St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D 41/00 (2006.01); B65D 53/00 (2006.01);
U.S. Cl.
CPC ...
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.