Donaldson Comapny, Inc.

Michigan State University

Other

Hoo Young Chung

Thomas M Weik

Mark Alan Gogins

Douglas G Crofoot

John R B Hall

Andrew J Dallas

Veli Engin Kalayci

Jon Dennis Joriman

Dustin Allen Zastera

James R Giertz

William Lefei Ding

Melvin S Schindler

Lefei Ding

Stanley B Miller, Iii

Donald R Monson

Suresh Laxman Shenoy

Timothy J Walsh

John Rb Hall

Andrew James Dallas

Suresh L Shenoy

Dustin Zastera

John Hall

Disclosed are improved polymer materials. Also disclosed are fine fiber materials that can be made from the improved polymeric materials in the form of microfiber and nanofiber structures. The microfiber and nanofiber structures can be used in a variety of useful applications including the formation of filter materials.

Fine fiber media layer

The assemblies of the invention can comprise a fine fiber layer having dispersed within the fine fiber layer an active particulate material. Fluid that flows through the assemblies of the invention can have any material dispersed or dissolved in the fluid react with, be absorbed by, or adsorbed onto, the active particulate within the nanofiber layer. The structures of the invention can act simply as reactive, absorptive, or adsorptive layers with no filtration properties, or the structures of the invention can be assembled into filters that can filter particulate from a mobile fluid while simultaneously reacting, absorbing, or adsorbing materials from the mobile fluid.

Web comprising fine fiber and reactive, adsorptive or absorptive particulate

A fine fiber can be made having a structure with an axial core and a coating layer. The fiber can have a polymer core and one or two layers surrounding the core. The fine fiber can be made from a polymer material and a resinous aldehyde (e.g., melamine-aldehyde) composition such that the general structure of the fiber has a polymer core surrounded by at least a layer of the resinous aldehyde composition.

Fine fibers made from polymer crosslinked with resinous aldehyde composition

A nanofibrillar structure for cell culture and tissue engineering is disclosed. The nanofibrillar structure can be used in a variety of applications including methods for proliferating and/or differentiating cells and manufacturing a tissue. Also disclosed is an improved nanofiber comprising a lipid, lipophilic molecule, or chemically modified surface. The nanofibers can be used in a variety of applications including the formation of nanofibrillar structures for cell culture and tissue engineering.

Nanofibrillar structure and applications including cell and tissue culture

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Edina, MN, United States of America

Hoo Young Chung