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. 09, 2008
Filed:
Mar. 28, 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);
Emmett Dudley Crawford, Kingsport, TN (US);
David Scott Porter, Blountville, TN (US);
Gary Wayne Connell, Church Hill, 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);
Emmett Dudley Crawford, Kingsport, TN (US);
David Scott Porter, Blountville, TN (US);
Gary Wayne Connell, Church Hill, TN (US);
Marcus David Shelby, Fall Branch, TN (US);
Eastman Chemical Company, Kingsport, TN (US);
Abstract
Disclosed is a process for the preparation of multilayered, shaped articles having high transparency and low haze and in which at least one layer contains at least one polyester comprising 2,2,4,4-tetramethyl-1,3-cyclobutanediol and a separate layer which contains a transamidized, homogeneous blend of a least two polyamides. The polyester component and the polyamide component 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 one or more of the layers of the article while maintaining high clarity. These articles can exhibit improved excellent barrier properties and good melt processability while retaining excellent mechanical properties. Metal catalysts can be incorporated into one or more layers to impart oxygen-scavenging properties.