Eastman Chemical Company

David Taylor Bowers

Scott Ellery George

Michael Duane Cliffton

Richard A Miller

Coralie McKenna Fleenor

Donna Rice Quillen

Joseph Franklin Knight

Ronnie J Jones

Ricky Thompson

Robert Lewis Stoots, Jr

Maureen Clare Maag

The present invention provides an article of manufacture having a coating or is otherwise surrounded in large measure by a second polymer which has non-blocking characteristics. In a preferred embodiment, the article possesses a core polymer which has a T of less than 25&deg; C. which is coated with or otherwise surrounded by a second polymer which has a T of greater than 25&deg; C., but less than 230&deg; C. Further, preferred core polymers have a number average molecular weight of about 3000 to about 100,000. A further feature of the articles of the present invention is that when heated to temperatures of about 100 to 300&deg; C., they undergo an ester exchange reaction to provide a substantially homogeneous polymer product useful in hot melt adhesive applications.

Non-blocking polymeric articles

The present invention relates to a process comprising polymerizing repeat units derived from an acid component comprising terephthalic acid and naphthalenedicarboxylic acid and at least one glycol in the presence of less than about 10 ppm sodium carbonate and between about 10 and about 60 ppm phosphorus. Polyesters formed via the process of the present invention display surprisingly good clarity and color.

Process for the production of clear copolyesters of terephthalic acid,

The present invention relates to a process for producing a high molecular weight polyester having less than about 0.5 weight % diethylene glycol comprising adding at least one carbonate compound to the ester exchange reaction product produced from reaction of a glycol component comprising ethylene glycol and an ester component comprising dimethylterephthalate, dimethylnaphthalenedicarboxylate and mixtures thereof wherein said reaction product is formed without a Ti catalyst.

Process for making polyesters containing low concentrations of

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Kingsport, TN, United States of America

David Taylor Bowers