Eastman Chemical Company

Eastman-kodak Company

Harry P Hall

Bobby Mal Phillips

Shriram Bagrodia

William Alston Haile

Richard D Neal

Lewis C Trent

Jack L Nelson

J Nelson Dalton

Ronnie J Jones

Ronald S Scalf

David A Casey

Marcus David Shelby

Michael Eugene Donelson

Stephen Weinhold

Kevin Douglas Horton

A method for determining the temperature distribution throughout the thickness of a preform used in a container reheat stretch blow molding process by measuring the outside surface temperature of a preform or series of preforms at least two times during the period the preform is cooling down after exiting the heat station and before entering the blow molding station in the blow molding machine and calculating the temperature distribution throughout the thickness of the preform based upon the measured outside surface temperatures using a novel algorithm.

Method and device for predicting temperature profiles throughout the thickness of a polymer preform

The present invention relates to a process for introducing strain-induced crystallization to polyesters. Specifically, amorphous polymer from the melt phase reactor is first extruded through a traditional strand die. However, instead of going directly into a pelletizer/cutter, it is stretched uniaxially at a temperature only slightly higher than Tg. The chain alignment resulting from stretching makes crystallization occur at a considerably higher rate than with traditional thermal crystallization. After this stretching process, the strand is annealed and fed to the pelletizer and chopped. The process of the present invention is advantageous for crystallizing polymers having slow rate of thermal crystallization half time from the glass. Optically clear polymers having at least about 15% crystallinity and a single melting point endotherm are produced.

Process for rapid crystallization of polyesters and co-polyesters via

Synthetic fiber that are capable of spontaneously transporting water on their surface satisfy the equation

Process for spontaneouly transporting a fluid

Process for helically crimping a fiber

Spinnerets are used to make synthetic fibers having the unique property of spontaneously transporting water on their surface. The synthetic fibers satisfy the equation

Spinnerets for making fibers capable of spontaneously transporting fluids

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Kingsport, TN, United States of America

Harry P Hall