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:
Jun. 18, 2002
Filed:
Dec. 22, 1998
George E. Rotter, Naperville, IL (US);
Paul J. Cahill, DuPage, IL (US);
Tamila J. Barnes, DuPage, IL (US);
Charles W. Bauer, Kane, IL (US);
David C. Johnson, Naperville, IL (US);
Matthew A. Kulzick, DuPage, IL (US);
Tsuei-Yun Lynch, DuPage, IL (US);
Walter M. Nyderek, Cook, IL (US);
BP Corporation North America Inc., Chicago, IL (US);
Abstract
Improved active oxygen scavenging packaging articles optionally further comprising SiO and/or EAA coatings are disclosed. Also improved active oxygen scavenging copolycondensates and their use in packaging articles are disclosed. Specifically disclosed are (1) the use of an oxidation moderator or controller (anti-oxidant) along with the copolycondensate scavenger and (2) post polymerization treatment of the copolycondensate substantially in the absence of oxygen. The improvements lead to increased oxygen consumption by the active oxygen scavenger and improved packaging characteristics for the active oxygen scavenging copolycondensates.