E.i. Dupont De Nemours and Company

Jill A Conley

Mikhail R Levit

Robert Anthony Marin

George Bruce Palmer, Iv

Douglas K Farmer

Donald H Brunk

Joseph Robert Guckert

Edmund A Merriman

Brian E Foy

Lenard Oscar Lundblad

Tony M Whitener

Roger K Siemionko

Frederic Terence Wilson

George Bruce Iv Palmer

Frederic Terrence Wilson

This invention relates to an improved method for making composite structures by dispersing a high tenacity fiber such as aramid in a polymeric matrix to form a premix, combining the premix with a natural fiber such as wood flour and extruding the resulting mixture through a fiber alignment plate and die such that the fibers are substantially aligned in the flow direction of the extrudate.

Composite material and method for making

A garment containing a breathable laminate that is optionally bonded to an outer layer fabric and an optional inner layer fabric. The breathable laminate is constructed from a microporous membrane situated in a face to face relationship with a nanoweb and optionally bonded thereto.

Breathable waterproof garment

A composite wind barrier fabric having the ability to maintain a high MVTR while controlling air permeability. The fabric has a nanofiber layer optionally welded to, and in a face-to-face relationship with, a fabric layer. Optionally a second fabric layer is welded adjacent to and in a face-to-face relationship with the nanofiber layer and on the opposite side of the nanofiber layer to the first fabric layer. The fabric has a Frazier air permeability of between about 1.2 m/m/min and about 7.6 m/m/min, and an MVTR per ASTM E-96B method of greater than about 500 g/m/day. The nanofiber layer is dyed over at least a portion or all of its surface or both.

Breathable waterproof fabrics with a dyed and welded microporous layer

A garment includes a breathable composite fabric between outer and inner fabric layers. The breathable composite fabric comprises two nanofiber web layers and a porous fluid drainage layer disposed therebetween.

Breathable garment having a fluid drainage layer

This invention relates to a liquid penetration-resistant water-vapor-permeable multi-layer composite material and process for making the same comprising a porous nanofiber web of polymeric fibers, wherein the polymeric fibers of the nanofiber web have a diameter of less than 1000 nanometers and wherein the nanofiber web has a basis weight of 5 to 40 grams per square meter and a surface roughness (&#x394;RMS) of 5 to 15 micrometers and where, the porous nanofiber web is coated on a surface with a layer of water-vapor-permeable, hydrophilic, monolithic, water transport material.

Fine-fiber nonwoven-supported coating structure

The present invention relates to meta- and para-aramid pulp for use as reinforcement material in products such as seals and friction materials. The pulp comprises (a) fibril free meta-aramid particles, (b) irregularly shaped, para-aramid fibrous structures, and (c) water, whereby the para-aramid fibrous structures contact and are wrapped partially around at least some of the meta-aramid particles. The invention further relates to processes for making such aramid pulp.

Meta- and para-aramid pulp and processes of making same

The present invention generally relates to both an apparatus, a test form and a method for evaluating sock-drop. More particularly, the present invention relates to an apparatus able to simulate particular forces exerted by human movements, a test form resembling a human leg as well as a method for testing sock-drop so that properties such as compression and comfort can be balanced.

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Midlothian, VA, United States of America

Jill A Conley