E.i. Dupont De Nemours and Company

Peter Michael Murphy

Engelbert Pechhold

Joyce Monson Materniak

Stephen Ernest Jacobson

Anilkumar Raghavanpillai

Melea Rena Langley

Stephan James McLain

Timothy Edward Hopkins

Jessica Sinks

Ying Wang

Andrew Edward Feiring

Patrick H Fitzgerald

Andrew Hen Liu

Tracy Hewat

Misty Dawn Dittman

Weiming Qiu

Gerald Oronde Brown

Yashavant V Vinod

Stefan Reinartz

Alexander Borisovich Shtarov

Edward James Greenwood

Charles L Strickler

Stephen James Getty

Romain Severac

Allison Mary Yake

Justine Gabrielle Franchina

Davis E Lee

Brent Ryan Gonska

Aaron Frank Self

Hollis Thomas Warren

James Kirk Hendrix

Jessica Louise Flatter

Neil A Panzier

William W Heim

Richard Wayne Thompson

Anne Dowdell Cathey

Patrick Henry Fitzgerald

Misty D Dittman

Stephan James Mclain

Jessica Flatter

Jessica Louise Nee Sinks Flatter

A process to prepare fluorinated sulfobetaine compounds of formula (I)   

Process to produce fluorinated betaines

A copolymer composition comprising monomers copolymerized in the following percentages by weight:

Ethylene tetrafluoroethylene (meth)acrylate copolymers

A fluoropolymer composition comprising monomers copolymerized in the following percentages by weight:

Fluoropolymer emulsions

The present invention comprises a compound comprising Formula 1A, 1B, or 1C(R&#x2014;O&#x2014;CO&#x2014;)X&#x2003;&#x2003;Formula 1AR&#x2014;O&#x2014;CO&#x2014;X&#x2014;CO&#x2014;O&#x2014;(CHCH)R&#x2003;&#x2003;Formula 1BR&#x2014;O&#x2014;CO&#x2014;X&#x2014;CO&#x2014;O&#x2014;R&#x2003;&#x2003;Formula 1Cwherein

Partially fluorinated sulfonated surfactants

Current methods for making polyfluorosulfonamido amines, which involve the use of a diamine reactant, provide low yields and produce an undesirable fluorine containing bis-sulfonamide by-product representing an economic loss. The bis-sulfonamide by-product is particularly undesirable because it shares very similar physical properties with the desired monoamine product thus making isolation of the desired polyfluorosulfonamido amine product difficult and costly. Furthermore, instead of the efficient incorporation of fluorine to make the desired polyfluorosulfonamido amine product, the bis-sulfonamide by-product constitutes a substantial loss of costly fluorinated starting material. The bis-sulfonamide by-product also constitutes an undesirable impurity that can worsen surfactancy, repellency, or other performance characteristics of the desired polyfluorosulfonamido amine product. The present invention provides a method of making a polyfluorosulfonamido amine without the production of a bis-sulfonamide by-product by reacting a polyfluoroalkylsulfonic compound with a monoamino amide rather than with a diamine reactant as in previously known methods.

Polyfluorosulfonamido amine and intermediate

The present invention comprises a compound of a compound of Formula 1 wherein

Urethane and urea fluorosurfactants

A fluorinated polyoxyalkylene glycol diamide surfactant of formula 1B&#x2014;X&#x2014;COCHO&#x2014;[&#x2014;CHO&#x2014;]&#x2014;CHCO&#x2014;X&#x2014;R&#x2003;&#x2003;(1)wherein

Fluorinated polyoxyalkylene glycol diamide surfactants

A fluorinated polyoxyalkylene glycol diester surfactant of formula 1B&#x2014;X&#x2014;COCHO&#x2014;[&#x2014;CHO&#x2014;]&#x2014;CHCO&#x2014;X&#x2014;R&#x2003;&#x2003;(1)wherein

Fluorinated polyoxyalkylene glycol diester surfactants

A method of providing water repellency, oil repellency, soil resistance, soil release, stain resistance and stain release to substrates comprising contacting said substrate with a composition comprising a copolymer having repeating units of Formula 1 in any sequence: wherein

Fluorinated water soluble copolymers

A method for imparting resistance to staining to a substrate comprising contacting the substrate with a copolymer comprising the monomers of Formula wherein

Copolymers for stain resistance

A composition which provides stain resistance and soil resistance to substrates comprising a copolymer of Formula 1 is disclosed, wherein D, M, R, R, x, k, h, i and j are defined as in claim

Perfluoroamidated and hydrolyzed maleic anhydride copolymers

A compound comprising Formula I, or a mixture thereof,R&#x2014;OCFHCFO&#x2014;[CHCHO]&#x2014;[CHO]-A&#x2003;&#x2003;Formula Iwherein

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Chadds Ford, PA, United States of America

Peter Michael Murphy