E.i. Dupont De Nemours and Company

Bha Altair. LLC

General Electric Company

Other

Parker-hannifin Corporation

Invista North America S.a.r.l.

Bha Group, Inc.

Clarcor Inc.

Invista Technologies S.a.r.l.

Vishal Bansal

Gary Charles Davis

Michael C Davis

Edgar N Rudisill

Robert Warren Taylor

Sam Louis Samuels

Hieu Minh Duong

Hyun Sung Lim

Peter Martin Maly

Benjamin Hale Winkler

Harry Vaughn Samuelson

Nusrat Farzana

Yit-Hong Tee

Jeffery Michael Ladwig

Tamaki Ryo

Leo J Crotty, Jr

Hyunkook Shin

Michael Robert Samuels

Gregory Paul Weeks

Thomas M Ford

Paul Sherwood Bryant

Stephen R Kay

James Edmond Van Trump

Stephen David Hiner

Joshua James Stone

Martin Gregory Hatfield

Debora Flanagan Massouda

Clare King

Dale Robert Kadavy

Yogesh Ner

H Vaughn Samuelson

Jason Mei

Thomas D Carr

Jeff Allen Canfield

Ryan Austin Hutchinson

Lei Li

David Matthews Laura, Jr

Kaiyi Liu

Bryan David Yetter

Christopher D Ferraro

Rana Ghufran Rasheed

Christopher Keller

James P Lenox

Reena Srivastava

Eric Clark Palmer

Thomas Michael Ford

An improved stretchable filtration fabric laminate is provided. The laminate includes a first fabric layer and a nanofiber layer. The laminate may be stretched without damaging the laminate. The laminate is thus suitable for incorporation into wearable protective garments, such as protective hoods, balaclavas, scarves, etc. that provide both protection and air filtration to the wearer.

Stretchable laminated filter material and protective article

A method of manufacturing a composite textile fabric is provided. The method includes the step of simultaneously forming and depositing fine fibers on a textile. The textile is at least one of a woven fabric, a knit fabric, and a fleece fabric. The fine fibers have an average diameter of less than 1.2 micron. The method also includes the step of bonding the fine fibers to form a membrane layer on the textile.

Direct deposition of nanofiber on a textile substrate

In embodiments, the present invention provides a plurality of fine fiber strands made from a first polymer and a second polymer where the second polymer has a higher molecular weight than the first polymer. In preferred embodiments, the fine fiber strands have an average diameter of less than 2 micron, and the fine fiber strands have a length of at least 1 millimeter.

High molecular and low molecular weight fine fibers and TPU fine fibers

A filter media is provided. The filter media has a blend of filter media fibers, including oxidized polyacrylonitrile (OPAN) fibers and fibers of at least one other polymer, such that the OPAN fibers comprise between 30% and 95% by weight of the blend. A filter element incorporating the filter media is also provided. A method of using the filter element is provided as well. Also provided is a method of manufacturing the filter media. The filter media has applicability for filtering air in such acidic environments as a cement factory, lime kiln, asphalt process, rock dust application, and coal fired boilers.

Filter and filter media having a fiber blend

A protective cover includes a textile layer and an air permeable, moisture-vapor-transmissive, expanded polytetrafluoroethylene membrane layer attached to said textile layer, the cover having an MVTR rating of at least 4000 g/m/day.

Protective covers and related fabrics

A sorption arrangement for a gas turbine includes a sorbent-laden media. The sorbent-laden media is positioned within an inlet system for the gas turbine. The sorbent-laden media includes one or more sorbents. The sorbent-laden media contacts inlet air passing through the inlet system for the gas turbine such that gas phase contaminants are removed from the inlet air by the sorbent-laden media. A method of removing gas phase contaminants within an inlet system of a gas turbine is provided.

Gas turbine inlet gas phase contaminant removal

Composite membrane materials and process for their production. The process entails the use of at least first and second porous membranes formed of a polymeric material and at least a third porous membrane formed of the same polymeric material, but having larger pores than the first and second porous membranes. The first, second and third porous membranes are laminated together by applying heat and pressure to the first, second and third porous membranes without applying a separate adhesive material therebetween. The laminated first, second and third porous membranes form a composite membrane in which the third porous membrane is between the first and second porous membranes.

Multi-layer composite membrane materials and methods therefor

Disclosed in this specification is a method for making a pleated filter cartridge by placing a pleated filter on a mold and adding a polymerizable potting compound to the inner cavity of the pleated filter. The potting compound is permitted to cover the portion of the upper surface of the mold that is encompassed by the pleats. The potting compound is selected to form a polyurethane after polymerization is complete.

Method and mold for making a pleated filter cartridge

A bi-component fiber is provided. The bi-component fiber includes a sheath formed of polyphenylene sulfide (PPS) and a core formed of a high glass transition polyester. A PPS material of the sheath has a higher melting point than a high glass transition polyester material of the core. The core is at least partially crystallized whereby the high glass transition polyester material of the core effectively has a higher softening point than a softening point of the PPS material of the sheath.

Bi-component fiber and filter media including bi-component fibers

The present invention provides a system for liquid distillation which includes a vapor permeable-liquid impermeable microporous membrane having structures defining a plurality of pores, an oleophobic material that is applied to the structures of the membrane so as to leave the plurality of pores open, a means for supplying non-distilled liquid to the first side of the membrane, and a means for collecting distilled liquid from a second side of the membrane. In a further example, the present invention provides a method for the distillation of liquids.

Membrane distillation modules using oleophobically and antimicrobially treated microporous membranes

A waterproof breathable garment is provided. The waterproof garment includes a first segment of a laminated composite material, a second segment of the laminated composite material, and a seam joining the first and the second segments of the laminated composite material to form the garment. The seam includes a light curable adhesive.

Waterproof breathable garment with tape-free seams

A pollutant removal system for use with a power generation system includes a particulate control device configured to remove particulates from a flue gas stream produced within the power generation system. The particulate control device is cleaned on a predetermined cleaning cycle. The pollutant removal system also includes a sorbent control system for controllably injecting a sorbent into the flue gas stream upstream of the particulate control device. The sorbent control system is configured to adjust a sorbent injection rate as a function of the cleaning cycle.

Methods and systems for removing pollutants from fluid stream

A method of manufacturing a fiber-reinforced article. The method includes the steps of providing a mat fiber structure defining voids therein. A membrane structure is applied over at least a portion of the fiber structure. The membrane structure includes a microporous membrane. At least the microporous membrane of the membrane structure has an oil resistance rating of at least a number 8 determined by AATCC 118 testing. A resin and hardener mix is provided. The resin is infused into voids of the fiber structure by applying a vacuum to the fiber structure and the membrane structure wherein the membrane structure inhibits the flow of resin therethrough.

Membrane structure for vacuum assisted molding fiber reinforced article

A membrane contactor system for use in separating carbon dioxide from a gaseous stream in a continuous flow process comprising a housing defining a gas flow path and comprising a first outlet for the carbon dioxide and a second outlet for the purified gas; an expanded polytetrafluoroethylene microporous membrane positioned in the housing to allow the gaseous stream to flow across a side of the expanded polytetrafluoroethylene microporous membrane, the membrane having a plurality of interconnecting pores configured to allow the carbon dioxide to diffuse therethrough; an oleophobic enhancement coating disposed on the surfaces to form a coated membrane; and an amine based sorbent liquid disposed on a side of the expanded polytetrafluoroethylene microporous membrane opposite the gas, wherein the amine based sorbent liquid is configured to absorb the carbon dioxide from the gaseous stream.

Membrane contactor systems for gas-liquid contact

A system, in certain embodiments, includes a protective membrane having first and second layers. The first layer is air permeable, vapor breathable, and liquid repellant. The second layer is vapor breathable, liquid repellant, and adsorptive of chemical and/or biological agents.

Composite membrane for chemical and biological protection

Growing community of inventors

Overland Park, KS, United States of America

Vishal Bansal