Fresenius Medical Care Holdings, Inc.

Autoliv Asp, Incorporated

Geoffrey Russell

Jiunn Teo

James White

Kevin Hudson

Praveen Kosaraju

Monica P Hall

Bradley W Smith

Michael Perry Jordan

Cheryl Ford

Selvaraj Savariar

Brett Allen Barton

A polysulfone-urethane copolymer is disclosed, which can be used as a membrane polymer, e.g., a matrix polymer, a pore forming agent, or both, while enhancing a membrane's blood compatibility. Methods are disclosed for forming the copolymer and incorporating the copolymer in membranes (e.g., spun hollow fibers, flat membranes) and other products.

Polysulfone-urethane copolymer, membranes and products incorporating same, and methods for making and using same

Methods of forming a curable pre-impregnated composite precursor material with radiation (e.g., actinic or electron-beam) curable resin composition systems are provided, as are the curable pre-impregnated composite precursor materials themselves. The resin systems have reversible temperature-viscosity control, which are advantageously used to form curable pre-impregnated composite precursor materials (pre-preg) that can be cured to form a composite article. The uncured resin composition comprises: (a) an acrylate or a methacrylate monomer; (b) an oligomer species selected from the group consisting of: polyethers, polyesters, epoxies, and combinations thereof; and (c) a photoinitiator. The uncured resin has a first viscosity at 21&#xb0; C. (70&#xb0; F.) of &#x2267;about 200,000 centipoise (cP) and a second viscosity of &#x2266;about 5,000 cP at 65&#xb0; C. (149&#xb0; F.) or above.

Radiation curable resin systems for composite materials and methods for use thereof

A process for making polyarylethers provides a reaction mixture that includes a dipolar aprotic solvent for polyarylether and polyarylether forming reactants, and reacts the polyarylether-forming reactants, with removing of water with nitrogen in the absence of azeotrope forming cosolvent and optionally replacing removed amounts with dipolar aprotic solvent. The process can further include directly wet spinning the reactor solution without recovery of the polymer from the dipolar aprotic solvent through a spinneret to form hollow fibers or flat sheets suitable for membranes.

Process for making polyarylethers and use in membrane preparation

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Ogden, UT, United States of America

Geoffrey Russell