Eastman Chemical Company

Grupo Petrotemex S.a. De C.v.

Earl Edmondson Howell, Jr

Max Allen Weaver

Jason Clay Pearson

Steven Lee Stafford

Jason Christopher Jenkins

Donna Rice Quillen

Joseph Franklin Knight

Cory Lee Wells

Perry Michael Murdaugh, Sr

Aaron Nathaniel Edens

William H Heise

Dennis Edward Brickey

Michael Alan Williams

Carol Juilliard Greene

Denis Edward Brickey

A method for incorporating a UV light absorbing compound into a polyester prepared using direct esterification of reactants selected from a dicarboxylic acid and a diol. The method comprises reacting the reactants in an esterifying reactor under conditions sufficient to form an esterified product including at least one of an ester, an oligomer, or mixture having an ester and a mixture of low molecular weight polyester; polymerizing the esterified product in a polycondensation reactor to form a polyester; and adding the UV absorbing compound to the esterified products when at least 50% of the carboxy groups initially present in the reactants have been esterified to obtain a yield of UV absorbing compound incorporated into the polyester of greater than 25%. Articles utilizing the UV protected polyester prepared by the method of the invention are additionally disclosed.

Process for adding methine UV light absorbers to PET prepared by direct esterification

A polyester composition, a preform, and a bottle, containing a polyester such as polyethylene terephthalate or polyethylene naphthalate and activated carbon to enhance the rate for reheating the composition is provided. Activated carbon may be added in the presence of active phosphorus containing compounds, or at any stage in the melt phase after prepolymerization and after the polyester polymer is solidified. Polyester concentrates containing activated carbon may be added to bulk polyesters to make preforms suitable for blowing into bottles.

Compositions and method for improving reheat rate of PET using activated carbon

A polyester pellet composition, a preform, and a bottle, each comprising a polyester polymer and silicon carbide. A polyester, and in particular a polyethylene terephthalate polyester, bottle containing silicon carbide has a low coefficient of static friction and a low bottle sidewall haze.

Polyester compositions containing silicon carbide

In a process for producing a polyester containing 1,4-cyclohexanedimethanol (CHDM) as one of its glycol components, an aqueous or a methanolic slurry comprising CHDM and a dicarboxylic acid is prepared. The slurry is maintained at a temperature below the melting point of CHDM. The slurry is then fed into a reactor. The slurry is esterified at sufficient temperatures and pressures, and optionally in the presence of a suitable catalyst, to effect esterification. A prepolymer is formed. The prepolymer is then polycondensed at sufficient temperatures and pressures in the presence of a suitable catalyst to effect polycondensation to form a polyester.

Process for manufacture of polyesters based on 1,4-cyclohexanedimethanol and isophthalic acid

A novel process has been developed for the crystallization of poly(ethylenenaphthalenedicarboxylate) (PEN) and its copolymers. The process comprises the step of maintaining the amount of water in said poly(ethylenenaphthalenedicarboxylate) below a critical moisture content ceiling throughout processing such that a separate drying step is not required.

Process for crystallization of poly(ethylenenaphthalenedicarboxylate)

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Kingsport, TN, United States of America

Earl Edmondson Howell, Jr