E.i. Dupont De Nemours and Company

University of North Carolina at Chapel Hill

Other

Stephan James McLain

Lynda Kaye Johnson

Jerald Feldman

Elizabeth Forrester McCord

Maurice S Brookhart

Christopher Moore Killian

Steven Dale Ittel

Samuel David Arthur

Kristina Ann Kreutzer

Edward Bryan Coughlin

Anju Parthasarathy

Alison Margaret Anne Bennett

Alison Margaret Bennett

Daniel Joseph Tempel

Ying Wang

Neville Everton Drysdale

Lin Wang

Peter Michael Murphy

Thomas M Ford

Karl Jeffrey Sweetman

Andrew Edward Feiring

Wilson Tam

Yueli Wang

Mark F Teasley

Dennis S Donald

Jessica Sinks

Xing Shen

Lissa Taka Nelson

Norman Herron

Robert John Barsotti

Alex Sergey Ionkin

Francis Joseph Waller

Zhen-Yu Yang

Patrick M Burke

Zhibin Guan

Rinaldo Soria Schiffino

Joe Douglas Druliner

Arthur W Sleight

James William O'Neil

Charles D Lang

Alexander Borisovich Shtarov

Paul Anthony Sant

Patricia Metzger Cotts

Harold S Horowitz

Catherine E Radzewich

Brent Ryan Gonska

Elisabeth M Hauptman

There is provided a compound having Formula I In the formula: Rcan be alkyl, aryl, alkylaryl, or deuterated analogs thereof; Rcan be alkyl or deuterated alkyl; Rcan be H, D, aryl, or deuterated aryl; and R-Rare the same or different and can be H, D, alkyl, or deuterated alkyl. In the formula, at least one of the following conditions is met:

Blue luminescent compounds

There is provided a process for forming a contained second layer over a first layer. The process comprises forming the first layer having a first surface energy and then treating the first layer with a photocurable surface-active composition which is a fluorinated ester or fluorinated imide of an &#x3b1;,&#x3b2;-unsaturated polyacid; exposing the photocurable surface-active composition patternwise with radiation resulting in exposed areas and unexposed areas; developing the photocurable surface-active composition to remove the unexposed areas resulting in a first layer having untreated portions in the unexposed areas and treated portions in the exposed areas, where the treated portions have a second surface energy that is lower than the first surface energy; and forming the second layer on the untreated portions of the first layer. There is also provided an organic electronic device made by the process.

Process and materials for making contained layers and devices made with same

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

A compound comprising Formula 5ROCFHCFO(CHCHO)&#x2014;H&#x2003;&#x2003;Formula 5wherein

Fluorinated alcohols

This invention relates to a protected organotin-based catalyst system for polyurethane synthesis that is useful in coatings applications. The catalyst has a formula according to; RRRSn[CH(OX)R], wherein R, R, and Rare the same or different and represent an optionally substituted hydrocarbyl, aromatic, alkoxide, amide, halide or stannyl group, Rrepresents an optionally substituted hydrocarbyl or optionally substituted aryl group. a, b, and c are independently 0, 1, 2, or 3; d is 1, 2 or 3; and a+b+c+d=4; and X is an acid-labile or moisture-labile protecting group. When a coating mixture comprising the catalyst is sprayed and/or applied to a substrate as a thin film in air, the catalyst is activated. For solvent-based refinish systems comprising hydroxyl and isocyanate species at high solids levels, the catalyst system therefore provides extended viscosity stability, i.e., pot life.

Protected air-activated organotin catalysts for polyurethane synthesis and processes therefore

Ethylene and allyl- or vinylsilanes are efficiently copolymerized by certain late transition metal complexes containing selected bidentate or tridentate ligands. The resulting novel polymers may be crosslinked by moisture when vinylsilane contains groups bound to silicon which are hydrolyzable. The polymers are useful for wire coating, crosslinked foams, pipes, and other uses.

Copolymers of vinyl- and allylsilanes

Transition metal complexes of selected monoanionic phosphine ligands, which also contain a selected Group 15 or 16 (IUPAC) element and which are coordinated to a Group 3 to 11 (IUPAC) transition metal or a lanthanide metal, are polymerization catalysts for the (co)polymerization of olefins such as ethylene and &#x3b1;-olefins, and the copolymerization of such olefins with polar group-containing olefins. These and other nickel complexes of neutral and monoanionic bidentate ligands copolymerize ethylene and polar comonomers, especially acrylates, at relatively high ethylene pressures and surprisingly high temperatures, and give good incorporation of the polar comonomers and good polymer productivity. These copolymers are often unique structures, which are described.

Catalysts for olefin polymerization

This invention relates to an organotin-based catalyst system for polyurethane synthesis that is useful in coatings applications. The catalyst has low activity in the absence of oxygen. When a coating mixture comprising the catalyst is sprayed and/or applied to a substrate as a thin film in air, the catalyst is activated. For solvent-based refinish systems comprising hydroxyl and isocyanate species at high solids levels, the catalyst system therefore provides extended viscosity stability, i.e., pot life.

Air-activated organotin catalysts for polyurethane synthesis

Air activated organotin catalysts for polyurethane synthesis

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

Fluorinated nonionic surfactants

A compound comprising Formula I, or a mixture thereof, wherein

Fluorinated sulfonate surfactants

Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc. Also described herein is the synthesis of linear &#x3b1;-olefins by the oligomerization of ethylene using as a catalyst system a combination a nickel compound having a selected &#x3b1;-diimine ligand and a selected Lewis or Bronsted acid, or by contacting selected &#x3b1;-diimine nickel complexes with ethylene.

&#x3b1;-olefins and olefin polymers and processes therefor

Substituted cyclopentenes, such as alkyl cyclopentenes, are polymerized by selected &agr;-imine complexes of nickel and palladium. The polymers are useful as molding resins or elastomers. Also disclosed herein are novel catalysts for the polymerization of cyclopentenes to form novel higher melting homopolycyclopentenes.

Polymers of substituted cyclopentenes

Growing community of inventors

Wilmington, DE, United States of America

Stephan James McLain