E.i. Dupont De Nemours and Company

Ticona Gmbh

Dupont Safety & Construction, Inc.

Richard Alan Jackson

Marion G Waggoner

Dennis Jack Royer

Marion Glen Waggoner

This invention relates to a package for providing an enclosed interior environment capable of being sterilized and a gas permeable fibrous nonwoven sheet structure useful in such structure, wherein the nonwoven sheet structure has at least one surface having a pre-sealed, embossed impression pattern; and a particle barrier penetration of below 10%, a Gurley Hill Porosity of 40 seconds or less, and a moisture vapor transport rate of 3500 g/m/day or greater.

Package comprising a sealed contact area including a nonwoven having a bonded surface with an embossed impression pattern

The properties of a liquid crystalline polymer (LCP) containing ester linkages and made in the presence of an excess of diol are improved by treating the LCP with a dicarboxylic acid at elevated temperature. The resulting LCPs are useful as molding resins and for films.

Manufacturing process for liquid crystalline polymer

An improved process for the pelletization of polymers is disclosed, using a die in which the die holes incorporate a reverse taper along at least a portion of the length thereof. Conditions for operation of an under melt cutter incorporating this die are also disclosed.

Polymer pelletization process and apparatus

Liquid crystalline polymers containing specified ratios of repeat units derived from hydroquinone, 2,6-naphthalenedicarboxylic acid, 4-hydroxybenzoic acid and optionally terephthalic acid have exceptionally high heat distortion temperatures, making especially useful for service at high temperatures. Compositions containing reinforcing agents, especially fibrous or platy reinforcing agents are particularly useful. These polymers and compositions are useful for electrical and electronic connectors, and as films for the electronics industry, and for other uses.

Liquid crystalline polymer composition

Underwater melt pelletizer dies which have a highly thermally conductive pathway from their heating source to the vicinity of the polymer exit end of their die holes and have a thermally insulating material at that end of their die holes have improved operability and can pelletize thermoplastics which are otherwise difficult or impossible to pelletize with such an apparatus.

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Glen Allen, VA, United States of America

Richard Alan Jackson