E.i. Dupont De Nemours and Company

James Ross Waggoner

Hyunkook Shin

Michael Allen Bryner

Theresa Ann Weston

Sam Louis Samuels

Homan B Kinsley, Jr

Chi C Lee

Charles Wesley Starke

Rudolph F Janis

John Edward Armstrong

Gurvinder P Kochar

Mieczyslaw (Michel) Stachnik

Mieczyclaw Stachnik

Silas S Shelburne, Jr

Andrew Paul Rose

James S Herrin, Jr

Robert J Evans

Karl M Martin

Richard B Smith

Mieczyslaw Stachnik

James S Herrin

Stretchable material with recovery properties that are waterproof and conformable in two or three dimensions particularly adapted for flashing in structures, especially at the bottom and lower corners of openings where water is likely to collect. A method of installing flashing materials in openings in structures.

Stretchable flashing materials and processes for making

A construction membrane that resists liquid and air penetration, is moisture vapor permeable, and has integral drainage channels is provided. An exterior wall construction incorporating such barrier sheet material is also provided. The wall construction may be faced with stucco, siding, brick or stone. A method for bonding and texturing the construction membrane is also provided.

Construction membrane

Fibers flash-spun from partially fluorinated polymers

Plexifilamentary strand of blended polymers

Fibers flash-spun from blends of polyolefin polymers

A process for producing high grade polyethylene paper on conventional continuous wet-lay papermaking equipment. In particular, the process comprises preparing a furnish of 75-99 wt. % oriented polyethylene pulp, 0.5-15 wt. % fibrous stabilizing agent and 0.5-10 wt. % strengthening agent and depositing the furnish on the forming screen of a conventional wet-lay papermaking machine. The resulting waterleaf sheet is dried on heated drying cans and then thermally bonded to provide a high grade polyethylene paper having high dry strength and toughness, exceptional dimensional stability and superior uniformity (i.e., no holes). The high grade polyethylene paper made by the inventive process is particularly useful in microfiltration end-uses such as vacuum cleaner bags.

High grade polyethylene paper

Growing community of inventors

Midlothian, VA, United States of America

James Ross Waggoner