Eastman Chemical Company

Other

Scott Arnold Hanson

Harold Eugene Dobbs

Douglas Stephens McWilliams

Emily Tedrow Bell

Michael Eugene Donelson

Richard L McConnell

Jeffrey James Vanderbilt

Stephen Wayne Coe

Gregory Wayne Nelson

Candace M Stipe

Hubertus Jacobus Moolenaar

Bradley Scott Westbrook

Yvette Marie Feay

Kurt Joseph Jordens

The invention provides a method for measuring the thickness, or non-uniformity of thickness, of one or more layers of a film or article such as a preform. At least one layer contains a known concentration and a substantially uniform distribution of fluorophores. The fluorophores are added to the one or more layers in sufficient quantity to impart fluorescence capable of detection by a detector when exposed to electromagnetic radiation at absorbing wavelengths. The layers of the invention may be made from polymeric material, non-polymeric material, or combinations thereof.

Determination of layer thickness or non-uniformity of layer thickness based on fluorophore additives

There is disclosed a process for producing films from ethylene-&agr;-olefin interpolymers, which films have, in combination, the properties of improved surface haze, improved stiffness, and improved color. The process involves incorporating from about 0.1 to less than 1% by weight, of a functionalized ethylene homopolymer or functionalized ethylene interpolymer into an ethylene-&agr;-olefin interpolymer-containing composition, and forming a film from the composition.

Process for producing ethylene-&agr;-olefin interpolymer films

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

A multi-layer electrostatic dissipative structure that is clear to translucent, washable and thermo-formable comprises at least one outer layer and a core layer. Preferably, two outer layers are utilized with the core layer sandwiched therebetween. The outer layers are a blend of amorphous or semi-crystalline copolyester and an electrostatic dissipative polymer in an amount sufficient to impart a surface resistivity of about 10.sup.5 to 10.sup.12 Ohms/sq. The core layer is a polymer having a haze value of less than five percent, preferably amorphous or semi-crystalline copolyester. The multi-layer structure may additionally have tie layers between the core layer and each of the outer layers.

Multilayered packaging materials for electrostatic applications

This invention relates to a blend comprising:

Copolyester compositions containing carbon black

A system for sanitizing beverage dispensing equipment includes a plurality of beverage sources such as kegs, each connected to a dispensing tap by means of a connecting conduit removably coupled to one of the sources and the tap. A manifold includes a plurality of flexible hoses attached thereto. Each of the hoses has a first end in fluid flow connection with the manifold body and a second end provided with a fitting adapted to be connected to one of the connecting conduits when it is disconnected from its beverage source. A source of solution for cleaning or sanitizing the taps and the connecting conduits is provided. A pump is connected by an inflow hose to the solution source and is connected to an outflow hose which has an output end with a fitting adapted to be connected in fluid flow communication to one of the connecting conduits when it disconnected from its beverage dispensing tap. Thus the cleaning solution can be circulated from the source through the one tap to the manifold and outward through the connecting conduits to the other taps. The taps are cleaned individually by successively opening each tap to permit outflow of sanitizing solution, which is preferably recovered in the source container and thus recycled through the system.

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Longview, TX, United States of America

Scott Arnold Hanson