E.i. Dupont De Nemours and Company

Other

The Chemours Company Fc, LLC

Shawmut Corporation

Ralph Birchard Lloyd

Kenneth Wayne Leffew

Charles Joseph Noelke

Edward George Howard, Jr

Che-Hsiung Hsu

Ronald James McKinney

Mark Weinberg

Ralph Munson Aten

Bryan Benedict Sauer

Qun Sun

Mark Andrew Harmer

Robert Clayton Wheland

Daniel David Lecloux

Christopher P Junk

Adam Fennimore

Edward G Howard

Daniel M Wyner

Shiva Prakash

Michael Henry Howard, Jr

Sung Jin Chung

Timothy Edward Hopkins

Sunghan Kim

James H Wyner

Randal L Perry

Murat Unlu

Richard Pierce

Gregory F Carey

James F Ryley

Michael Nahmias

Shaun Terrance Einar Mesher

Mark Robert Mckeever

Mark Gary Weinberg

Jack Christopher Brady

Douglas Glenn Ewart

The presently disclosed subject matter is generally directed to a system and method of reducing, reacting, and/or removing an oxidant or unwanted chemical species from a chemical stream. Particularly, the system and method include the use of one or more reductants that react with the undesired chemical species. The reductant and the chemical stream are added to a reactor and allowed to react for a desired amount of time. The reductant will reduce, react with, and/or remove the chemical species from the stream. The excess reductant and reaction products are then removed from the reactor, as described in more detail herein below.

System and method of reducing oxidants in a chemical stream

The invention relates to flow batteries having improved crossover resistance to electroactive species, excellent coulombic and voltage efficiency and durability, which batteries comprise a separator membrane comprising an ionomer having a high equivalent weight, EW, to achieve these performance benefits. The ionomer has an EW of 1150 to 2000. Preferably, the ionomer is a perfluorosulfonic acid ionomer which has substantially all of the functional groups being represented by the formula &#x2014;SOX wherein X is H, Li, Na, K or N(R)(R)(R)(R) and R, R, R, and Rare the same or different and are H, CHor CH. Preferably, substantially all of the functional groups are represented by the formula &#x2014;SOX wherein X is H.

Flow battery having a separator membrane comprising an ionomer

A system and method of disinfecting an area using germicidal radiation. The system is configured to capture images of an environment, analyze the images to determine locations of a person or unprotected skin of a person in the environment, and control one or more germicidal radiation emitters to decontaminate the environment where the person or exposed skin of persons in the environment are not located. The system and method allow for safe decontamination of an environment using hazardous levels of germicidal radiation while occupied by a person who may not be fully protected from the radiation.

System and method for disinfecting an occupied environment using direction controlled germicidal radiation

A system and method of disinfecting an area using germicidal radiation. The system is configured to track person within the environment, and to control one or more germicidal radiation emitters based on user and sensor inputs, such as detecting whether the eyes are protected for the persons in this environment. The system is configured to intentionally and safely expose persons in the environment to germicidal radiation. This provides for safe, electronically controlled, direct decontamination of the surfaces, air, and persons in the environment.

System and method for disinfecting an occupied area using germicidal radiation based on eye protection worn by persons in the area

The present disclosure relates to a passivation layer comprising a photocrosslinked fluoropolymer and a process for forming the layer. Passivation layers comprising the crosslinked fluoropolymer have low dielectric constants, low water absorptivity and are able to be photoimaged so as to provide the very fine features needed for modern electronic equipment.

Passivation layer comprising a photocrosslinked fluoropolymer

Chitosan films and laminates made from the films are provided. The films and laminates can be used to make a variety of finished articles that can be used to provide protection from hazardous chemical and biological agents.

Laminates of chitosan films

Particles comprising a bulk of fluoropolymer and a nucleus of fluorinated ionomer, dispersions of such particles, articles and coatings made from such particles.

Fluoropolymer particles having a nucleus of fluorinated ionomer

A process for making an aqueous dispersion of fluorinated ionomer particles by providing dispersed particulate of fluorinated ionomer in an aqueous polymerization medium and polymerizing at least one fluorinated monomer having an ionic group in the aqueous polymerization medium in the presence of the dispersed particulate of fluorinated ionomer and initiator to form the aqueous dispersion of particles of fluorinated ionomer.

Fluorinated ionomer produced by aqueous polymerization using dispersed particulate of fluorinated ionomer

A process for making an aqueous dispersion of fluorinated ionomer particles by polymerizing in a first polymerization step at least one fluorinated monomer having an ionic group in an aqueous polymerization medium in the presence of initiator, the polymerizing providing dispersed particulate of fluorinated ionomer, polymerizing in a second polymerization step at least one fluorinated monomer having an ionic group in the aqueous polymerization medium in the presence of the dispersed particulate of fluorinated ionomer and initiator to form the aqueous dispersion of particles of fluorinated ionomer, and suspending the first polymerization step prior to beginning the second polymerization step.

Fluorinated ionomer produced by aqueous polymerization using dispersed particulate of fluorinated ionomer produced in situ

The present invention relates to electrically conductive compositions, and their use in electronic devices. The composition includes either (1) a deuterated electrically conductive polymer doped with a highly-fluorinated acid polymer; or (2) (a) a deuterated electrically conductive polymer doped with a non-fluorinated polymeric acid and (b) at least one highly-fluorinated acid polymer.

Electrically conductive polymer compositions

Processes for fabricating selectively permeable laminates are provided. In one process, continuous chitosan film is prepared by casting a chitosan solution directly onto a substrate that will be incorporated along with the film into a laminate. Alternatively, the chitosan solution is cast onto a work device (for example, such as glass or a polymer film), dried, detached, and then incorporated into a laminate in a separate step. In various embodiments, the laminates are useful for fabrication as a protective article and are substantially impermeable to hazardous chemical and biological agents, but sufficiently permeable to water vapor that, if worn as protective apparel, it is both protective and comfortable to wear.

Processes for making selectively permeable laminates

A process for making an aqueous dispersion of fluoropolymer particles by providing dispersed particulate of fluorinated ionomer in an aqueous polymerization medium and polymerizing at least one fluorinated monomer in the aqueous polymerization medium in the presence of the dispersed particulate of fluorinated ionomer and initiator to form the aqueous dispersion of particles of fluoropolymer.

Fluoropolymer produced by aqueous polymerization using dispersed particulate of fluorinated ionomer

The invention relates to conductive polymer composites comprising a first layer comprising at least one electrically doped conductive polymer and a second layer comprising at least one material selected from a colloid-forming polymeric acid, a salt of a colloid-forming polymeric acid, a non-polymeric fluorinated organic acid, and a salt of a non-polymeric fluorinated organic acid.

Conductive polymer composites

A process for making an aqueous dispersion of fluoropolymer particles by polymerizing in a first polymerization step at least one fluorinated monomer having an ionic group in an aqueous polymerization medium in the presence of initiator, the polymerizing providing dispersed particulate of fluorinated ionomer, and polymerizing in a second polymerization step at least one fluorinated monomer in the aqueous polymerization medium in the presence of the dispersed particulate of fluorinated ionomer and initiator to form the aqueous dispersion of particles of fluoropolymer.

Fluoropolymer produced by aqueous polymerization using dispersed particulate of fluorinated lonomer produced in situ

Protective laminates are provided that include (a) a layer that is breathable and highly impermeable to chemicals to a degree that is subject to reduction upon flexing of the highly impermeable layer alone; and (b) a breathable non-textile layer attached to the highly impermeable layer, the non-textile layer mitigating the reduction in the impermeability of the highly impermeable layer if the laminate is flexed. The laminates may, for example, be attached to textiles and used in protective fabrics.

Growing community of inventors

Fayetteville, NC, United States of America

Ralph Birchard Lloyd