E.i. Dupont De Nemours and Company

Invista North America S.a.r.l.

Invista Technologies S.a.r.l.

Invista Textiles Limited

Thomas Foo

Anna Panova

Robert DiCosimo

Mark Scott Payne

Robert Donald Fallon

Daniel P O'Keefe

Joseph J Zaher

F Glenn Gallagher

Xu Li

George C Fox

Jeffery Scott Thompson

James Michael Garner

Ron Ozer

Mark Andrew Harmer

Wilson Tam

Christopher P Junk

Keith Ward Hutchenson

Aaron Minter

Paul S Pearlman

Berlyn R Mellein

Ronald James McKinney

Sigridur Soley Kristjansdottir

Christian Peter Lenges

Mark B Shiflett

Albert Loren Casalnuovo

Jeffrey Scott Thompson

Anne Irisa Breikss

Ronald J Mckinney

Ronald J Mc Kinney

Sigridur S Kristjanstdottir

Sigridur S Kristjansdottir

This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker.

N-substituted pyrrolidonium ionic liquids with expanded linker

This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker; and to methods of carbon dioxide removal in which they may be used.

Carbon dioxide removal and ionic liquid compounds useful therein

Functionalized N-substituted pyrrolidonium ionic liquids

This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker, which compounds may be represented by the structure of the following Formula I: wherein:

N-substituted pyrrolidonium ionic liquids

A process is provided for producing glycolic acid from formaldehyde and hydrogen cyanide. More specifically, heat-treated formaldehyde and hydrogen cyanide are reacted to produce glycolonitrile having low concentrations of impurities. The glycolonitrile is subsequently converted to an aqueous solution of ammonium glycolate using an enzyme catalyst having nitrilase activity derived from72W (ATCC 57746). Glycolic acid is recovered in the form of the acid or salt from the aqueous ammonium glycolate solution using a variety of methods described herein.

Process for producing glycolic acid from formaldehyde and hydrogen cyanide

The invention provides a hydrocyanation process to produce adiponitrile and other dinitriles having six carbon atoms, in the presence of catalyst composition comprising a zero-valent nickel and at least one bidentate phosphorus-containing ligand wherein the bidentate phosphorus-containing ligand gives acceptable results according to at least one protocol of the 2-Pentenenitrile Hydrocyanation Test Method.

Hydrocyanation of pentenenitriles

The invention provides an integrated, continuous process for the production of 3-pentenenitrile, the refining of 3-pentenenitrile, and the refining of 2-methyl-3-butenenitrile, the process comprising:

Process for making and refining 3-pentenenitrile, and for refining 2-methyl-3-butenenitrile

The invention provides a continuous process for the production of 3-pentenenitrile, comprising:

Process for making 3-pentenenitrile by hydrocyanation of butadiene

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Wilmington, DE, United States of America

Thomas Foo