General Electric Company

Sabic Innovative Plastics IP B.v.

Daniel Steiger

Daniel Joseph Brunelle

Gary William Yeager

Yanshi Zhang

Hongyi Zhou

David Roger Moore

Joyce Hung

Marianne Elisabeth Harmon

Hongwei Liu

Robert Edgar Colborn

Stanley Young Hobbs

Ali Ersin Acar

Fazila Seker

Hieu Minh Duong

Joseph Anthony Suriano

Eelco M S Van Hamersveld

Chris Hartshorn

James Edward Pickett

Farid Fouad Khouri

Qing Ye

Christoph Georg Erben

Liming Yu

Donald Scott Johnson

Sean Elliot Armstrong

Eelco Michiel Sebastiaan Van Hamersveld

Christopher Mark Hartshorn

Amy Beth Koren

Polyethersulfones having Tg greater than about 225&#xb0; C. and a notched Izod value greater than about 1 ft-lb/in, as measured by ASTM D256, comprise from about 5 mol % to less than about 40 mol % structural units of formula 1; and from greater than about 60 mol % to about 95 mol % structural units of formula 2 wherein

Polyethersulfone compositions with high heat and good impact resistance

Polyethersulfones having Tg greater than about 225&#xb0; C. and a notched Izod value greater than about 1 ft-lb/in, as measured by ASTM D256, comprise from about 5 mol % to less than about 40 mol % structural units of formula 1; and  

A method for making a polysulfone having zwitterionic functionality comprising reacting a piperazine amine functionalized polysulfone with sultone is described as are blends with other polymers. Membranes containing polysulfones having zwitterionic functionality are also provided. Membranes thus formed are used in hemodialysis, hemofiltration, and water purification.

Polyarylether compositions bearing zwitterion functionalities

Membranes for use in methods and apparatuses for hemodialysis and hemofiltration are composed of at least one membrane comprising a polyarylethernitrile having structural units of formula 1, 2, 3 and 4 wherein

Polyarylether membranes

A membrane including a polyarylether having amide functionality. The polyarylether having amide functionality includes units from at least one of structure I or structure II: Rand Rare separate groups or are covalently connected to form a cyclic moiety; Rand Rare each, independently, hydrogen, Calkyl, C-Caryl or a substituted Caryl; R, R, R, R, Rand Rare each, independently, a nitro group, C-Calkyl, C-Caryl or a combination; Y is hydrogen, Calkyl or C-Caryl; k is from about 0 to about 10; a, b, c, d, e and f are each, independently, 0, 1, 2, 3 or 4; and m and n are each, independently, 0 or 1.

The present invention relates to methods and apparatuses for water filtration comprising contacting a water stream with a membrane comprising a polysulfone having structural units of Formula I 

Polysulfone membranes methods and apparatuses

Copolymers are disclosed comprising structural units derived from &#x3b1;-methylene-&#x3b3;-butyrolactone, styrene, methyl methacrylate and acrylonitrile. The copolymers may be used as protective layers in multilayer articles that include UV sensitive substrate materials. The multilayer articles may also include a silicone hardcoat.

Tulipalin copolymers

A polyethersulfone composition is disclosed which comprises structural units derived from bisphenol-A and 4,4'-biphenol, the structural units derived from 4,4&#x2032;-biphenol being present in an amount corresponding to greater than 65 mole percent based on total moles of structural units derived from diphenolic monomers, wherein the polyethersulfone has a weight average molecular weight (M) of at least 54,000 grams per mole as measured by gel permeation chromatography. The polyethersulfone compositions of the invention display outstanding impact strength as measured using ASTM D256. Surprisingly, the polyethersulfone compositions of the invention show enhanced impact strength relative to known polyethersulfones such as RADEL R, a commercially available polyethersulfone engineering thermoplastic comprised of structural units derived from a dihalodiarylsulfone and 4,4&#x2032;-biphenol and having a Notched Izod impact strength of about 700 Joules per meter.

Polyethersulfone composition, method of making and articles therefrom

A method for making a polyarylether block copolymer having amide functionality including reacting a dihydroxyaromatic compound having amide functionality and a dihaloaromatic sulfone or dinitroaromatic sulfone in the presence of a base to form a polyarylether having amide functionality and reacting the polyarylether having amide functionality with a polymer. The block copolymer and blends are also provided.

Polyarylethers, blends and methods for making

Membranes for use in methods and apparatuses for hemodialysis and hemofiltration are composed of at least one polyarylethernitrile block copolymer having structural units of formula I 

Membranes comprising functional polyarylether having structural units of formula II are useful for hemodialysis and hemofiltration: 

Functional polyarylethers

Membranes comprising functional polyarylether having structural units of formula I are useful for hemodialysis and hemofiltration: 

Reactive monomers containing the trifluorovinyloxy group may be copolymerized to form polymers useful as membranes, especially polymer electrolyte membranes for fuel cells. The monomers have the formula ((CFCFO(R))ArX wherein 

Trifluorovinyloxy monomers and polymers

Provided is a fluorine substituted oligomeric or polymeric ester including the reaction product of a fluorine substituted acrylate or a fluorine substituted methacrylate; an unsaturated anhydride; and an alkyl acrylate or an alkyl methacrylate. Also provided is a method of making the composition.

Growing community of inventors

Clifton Park, NY, United States of America

Daniel Steiger