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.

Date of Patent:
Mar. 01, 2016

Filed:

Jun. 24, 2013
Applicant:

Eastman Chemical Company, Kingsport, TN (US);

Inventors:

Ryan Thomas Neill, Kingsport, TN (US);

Douglas Stephens McWilliams, Piney Flats, TN (US);

Assignee:

Eastman Chemical Company, Kingsport, TN (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L 67/02 (2006.01);
U.S. Cl.
CPC ...
C08L 67/02 (2013.01); C08L 2205/03 (2013.01); Y10T 428/139 (2015.01); Y10T 428/1397 (2015.01);
Abstract

Disclosed are ternary polyester blends that contain at least one polyester comprising terephthalic or isophthalic acid, ethylene glycol, and 1,4-cyclohexanedimethanol residues, and at least one polyester comprising terephthalic or isophthalic acid, 2,2,4,4-tetramethyl-1,3-cyclobutanediol, and 1,4-cyclohexanedimethanol residues. The ternary polyester blends have improved clarity, toughness, and fabrication characteristics and are useful for the preparation of flat or shaped articles. Of special interest are ternary blends where one of the three components compatibilizes the blend of two otherwise immiscible polyesters.


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