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. 21, 2011
Filed:
Feb. 27, 2006
Wesley Raymond Hale, Kingsport, TN (US);
Thomas Joseph Pecorini, Kingsport, TN (US);
Mark Edward Stewart, Kingsport, TN (US);
Martin Emerson Rogers, Blacksburg, VA (US);
Spencer Allen Gilliam, Kingsport, TN (US);
Michael Duane Cliffton, Kingsport, TN (US);
Marcus David Shelby, Fall Branch, TN (US);
Wesley Raymond Hale, Kingsport, TN (US);
Thomas Joseph Pecorini, Kingsport, TN (US);
Mark Edward Stewart, Kingsport, TN (US);
Martin Emerson Rogers, Blacksburg, VA (US);
Spencer Allen Gilliam, Kingsport, TN (US);
Michael Duane Cliffton, Kingsport, TN (US);
Marcus David Shelby, Fall Branch, TN (US);
Eastman Chemical Company, Kingsport, TN (US);
Abstract
Disclosed are oxygen-scavenging polymer compositions having high transparency and low haze comprising immiscible blends of one or more thermoplastic polymers selected from polyesters, polycarbonates, and polyarylates, a copolyamide or a transamidized, homogeneous blend of a least two polyamides, and a metal catalyst. The components of the immiscible blend which have refractive indices which differ by about 0.006 to about −0.0006. The small difference in the refractive indices enable the incorporation of regrind into the polymer composition to produce transparent shaped articles. The blends of the present invention are useful in producing shaped articles such as, for example, sheeting, films, tubes, bottles, preforms and profiles. These articles may have one or more layers and can exhibit improved excellent barrier properties and good melt processability while retaining excellent mechanical properties.