E.i. Dupont De Nemours and Company

Joseph Robert Guckert

Hyunkook Shin

Joseph V Kurian

Hyun Sung Lim

Mikhail R Levit

Robert Anthony Marin

Ioannis V Bletsos

Jill A Conley

George Bruce Palmer, Iv

David Carl Roberts

Steven R Givens

Yogeshwar K Velu

George Bruce Iv Palmer

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

Porous fibrous sheets are provided that are useful in end uses requiring microbial barrier properties such as medical packaging and medical gowns and drapes. The porous fibrous sheets may contain nanofibers and wood pulp.

Porous fibrous sheets of nanofibers

A process for producing plexifilamentary or foam products by flash spinning in selected spin agents a polymer from the group consisting of poly (1,3-propylene terephthalate), poly (1,4-butylene terephthalate), and poly(ethylene terephthalate), including their copolymers in which the spin agents have minimal or no ozone-depleting properties.

Plexifilamentary strands of polyester

Flash spinning process and solutions of polyester

A bonded composite sheet comprising a layer of flash-spun polyethylene plexifilamentary film-fibril strand sheet in face-to-face contact with a layer of polyethylene synthetic pulp is highly suited for detailed printing thereon.

Composite fibrous polyethylene sheet

Growing community of inventors

Chester, VA, United States of America

Joseph Robert Guckert