E.i. Dupont De Nemours and Company

The University of North Carolina at Chapel Hill

Other

Commonwealth Scientific and Industrial Research Organisation

Elizabeth Forrester McCord

Lynda Kaye Johnson

Stephan James McLain

Steven Dale Ittel

Samuel David Arthur

Christopher Moore Killian

Lin Wang

Maurice S Brookhart

Alison Margaret Anne Bennett

Fredrik Nederberg

Ying Wang

Neville Everton Drysdale

Jerald Feldman

Peter Arnold Morken

Gary Delmar Jaycox

Marc Bruce Goldfinger

Yueli Wang

Kenneth George Sharp

Reid John Chesterfield

Rinaldo Soria Schiffino

Kristina Ann Kreutzer

Jeffrey Scott Meth

Graciela Beatriz Blanchet

Feng Gao

Richard Kevin Bailey

William J Marshall

Daniel Joseph Tempel

Karl Jeffrey Sweetman

Alex Sergey Ionkin

Paul J Shannon

Edward Bryan Coughlin

Mark F Teasley

Gerald Donald Andrews

Geoffrey Nunes

Charles Nehemiah McEwen

Anju Parthasarathy

Catherine E Radzewich

Mark Andrew Harmer

Lech Wilczek

Zhen-Yu Yang

Yefim Brun

Howard David Glicksman

Zhibin Guan

Karyn B Visscher

Irina Malajovich

Elisabeth Muriel Hauptman

Patricia Metzger Cotts

John W Catron, Jr

Alison Margaret Bennett

Thomas C Felder

Karl Jeffery Sweetman

Stephan J Mclain

Charles Nehemiah McEwan

Elisabeth M Hauptman

Alicia Maria Castagna

Ken-Hsuan Liao

John Catron

Christopher John Rasmussen

Transesterified-blend compositions comprising transesterified furan-based polyester and transesterified terephthalate-based polyester disclosed herein and articles made therefrom.

Transesterified furan based polyesters and articles made therefrom

Disclosed are block copolyesters comprising blocks of fluoroether functionalized aromatic polyester and blocks of unmodified aromatic polyester, the block copolyesters having a blockiness index, B, in the range of 0.25 to 1.0. The block copolymers incorporated into blends with unmodified aromatic polyester impart oil and soil resistance to shaped articles prepared from the blends.

Fluorinated block copolyesters

Disclosed are polymer blends prepared by melt blending a fluorinated block copolyester with a non-fluorinated polyester wherein the fluorinated block copolyester comprises blocks of fluoroether modified aromatic polyester and blocks of unmodified polyester. Suitable block copolyesters have a blockiness index, B, in the range of 0.25 to 1.0. Shaped articles prepared from the blends exhibit oil and soil resistance with high fluorine efficiency.

Polymer blend comprising fluorinated block copolyester

Disclosed are shaped articles fabricated from polymer blends comprising a fluorinated block copolyester and a non-fluorinated polyester wherein the fluorinated block copolyester comprises blocks of fluoroether modified aromatic polyester and blocks of unmodified polyester. Suitable block copolyesters have a blockiness index, B, in the range of 0.25 to 1.0. Shaped articles that can be made from the copolyesters include films, fibers, and molded parts.

Shaped articles comprising fluorinated block copolyesters

Disclosed is a polycondensation process for preparing block copolyesters comprising blocks of fluoroether functionalized aromatic polyester and blocks of unmodified polyester. According to the process, a non-fluorinated poly(alkylene arylate) first homopolymer and a fluoroether functionalized poly(alkylene arylate) second homopolymer are combined to form a reaction mixture; the reaction mixture is heated to a temperature above the melting temperatures of each said homopolymer to prepare a molten reaction mixture; and the reaction is continued until the desired molecular weight is achieved. The block copolymers incorporated into blends with unmodified aromatic polyester impart oil and soil resistance to shaped articles prepared from the blends.

Process for preparing fluorinated block copolyesters

The invention is related to thermal imageable dielectric layers and thermal transfer donors and receivers comprising dielectric layers. The thermal transfer donors are useful in making electronic devices by thermal transfer of dielectric layers having excellent resistivity, good transfer properties and good adhesion to a variety of receivers.

Thermally imageable dielectric layers, thermal transfer donors and receivers

The invention discloses processes for thermal transfer patterning of a nanoparticle layer and a corresponding proximate portion of a carrier layer, and optionally additional transfer layers, together onto a thermal imaging receiver. The invention is useful for dry fabrication of electronic devices. Additional embodiments of the invention include multilayer thermal imaging donors comprising in layered sequence: a base film, a carrier layer and a nanoparticle layer. The carrier layer can be a dielectric or conducting layer. When the carrier layer is a dielectric layer, the base film includes a light attenuating agent in the form of a dye or pigment.

Donor elements and processes for thermal transfer of nanoparticle layers

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

Copolymers of olefins and vinyl- and allylsilanes

Ethylene and/or propylene, and &#x3b1;-olefins may be copolymerized by contacting then with certain iron or cobalt complexes of selected 2,6-pyridinecarboxaldehydebis(imines) and 2,6-diacylpyridinebis(imines). The polymers produced, some of which are novel, are useful as molding resins.

Copolymerization of olefins

Ethylene, dienes and optionally &#x3b1;-olefins are copolymerized by selected iron complexes of 2,6-pyridinecarbox-aldehydebis(imines) and 2,6-diacylpyridinebis(imines). The resulting copolymers contain residual olefinic unsaturation from the diene monomers, and some of these copolymers contain cyclic units in the main chain.

Copolymerization of ethylene and dienes

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

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Hockessin, DE, United States of America

Elizabeth Forrester McCord