Eastman Chemical Company

Emily Tedrow Bell

Douglas Stephens McWilliams

Harold Eugene Dobbs

Scott Arnold Hanson

Timothy Edward Long

Steven Lee Stafford

Wayne Ken Shih

James W Mercer, Jr

James Rodney Bradley

Jennifer L Stewart

A process is provided for single screw extrusion of a composition or masterbatch comprising a polymer and an antistatic agent wherein the feed zone temperature is maintained below 385&deg; F. in order to allow processability of the composition.

Single screw extrusion of polymers

A novel composition is provided comprising a copolyester having CHDM moieties in amounts of about 1 to about 20 mole percent, and a particular antistat, that is extrudable.

Extrudable masterbatch

Polyester/polyamide blends with improved color

Monolayer and multilayer non-oriented polyester films comprising of at least one layer of an amorphous heat-sealing polyester wherein the heat-sealing polyester consisting essentially of terephthalic acid, ethylene glycol, and about 7-15 mol % cyclohexanedimethanol. The heat-sealing polyester has a heat of fusion greater than 0.5 cal/g and is sufficiently crystallizable to allow the drying of mixtures of the heat-sealing polyesters with other crystallizable polyesters without sticking. Multilayered films also contain a layer of an amorphous crystallizable polyethylene terephthalate.

Non-oriented, heat-sealing polyester film

The present invention relates to thermoformed plastic articles such as frozen food trays which exhibit unexpectedly high impact strength at low temperatures. The articles are obtained from polyester blends containing 88 to 99 weight percent of a poly(ethylene terephthalate) resin and 1 to 12 weight percent of a poly(1,4-cyclohexylenedimethylene terephthalate) resin which contains at least 30 mole percent of 1,4-cyclohexanedimethanol.

High impact strength articles from polyester blends

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East Longmeadow, MA, United States of America

Emily Tedrow Bell