E.i. Dupont De Nemours and Company

Nutrition & Biosciences USA 4, Inc.

Douglas J Adelman

Christian Peter Lenges

Natnael Behabtu

Neville Everton Drysdale

Weiming Qiu

Ross Stefan Johnson

Richard Beckerbauer

Kathleen Opper

Alicia C Briegel

Christian Herbert

Mark Robert Sivik

Robert John Barsotti

Donald Edward Putzig

Larry F Charbonneau

Mark Andrew Scialdone

Laura Ann Lewin

Jozef Theresia Huybrechts

Josef Huybrechts

Robin Nikolas Greene

Kristi Lynn Fliter

Leen Tanghe

Gang Si

Zhengzheng Huang

Helen Sm Lu

Geraldine M Direnzo

Andreas Jürgen Wego

Sophie Ung

Andreas Jorgen Wego

David Good

Neil Thomas Fairweather

The disclosure relates to poly alpha-1,6-glucan derivatives comprising poly alpha-1,6-glucan substituted with at least one organic group linked to the poly alpha-1,6-glucan through a linkage moiety selected from ether, sulfonyl, carbonate, or carbamoyl/carbamate, and having a degree of substitution of about 0.001 to about 3.0. The poly alpha-1,6-glucan comprises a backbone of glucose monomer units wherein greater than or equal to 40% of the glucose monomer units are linked via alpha-1,6 glycosidic linkages, and optionally at least 5% of the backbone glucose monomer units have branches via alpha-1,2 and/or alpha-1,3 glycosidic linkages. Compositions comprising a poly alpha-1,6-glucan derivative can be useful in various applications.

Poly alpha-1,6-glucan derivatives and compositions comprising same

Disclosed herein are food and food dough comprising at least flour and/or meal, and insoluble alpha-1,3-glucan. Further disclosed are methods of producing such food and food dough.

Flour- and meal-based food products comprising insoluble alpha-1,3-glucan

A process is disclosed herein comprising the steps:

Process for making polyacrylonitrile fibers

Compositions are disclosed herein comprising one or more crosslinked dextrans or crosslinked dextran-poly alpha-1,3-glucan graft copolymers. Further disclosed are processes for preparing such crosslinked materials, as well as their use in absorption applications.

Crosslinked dextran and crosslinked dextran-poly alpha-1,3-glucan graft copolymers

A process for preparing amide acetals represented in Formula I comprising dehydrating a reactant mixture comprising reactants selected from a group consisting of N-acyl dialkanol amines, O-acyl dialkanol amines and mixtures thereof wherein

Process for preparing amide acetals

Described in this invention is a catalytic process for making amide acetals from nitrites and diethanolamines. Amide acetals can be further crosslinked by hydrolyzing the amide acetal groups, and subsequently reacting the hydroxyl groups and/or the amine functions that are formed, to crosslink the composition.

Process for making amide acetals

A melt polymerization process for the preparation of poly(1,3-propylene-co-isosorbide) terephthalate (3GIT), new 3GITs and products made from the 3GITs. The process comprises (a) providing a mixture comprising terephthalic acid or its alkyl ester, 1,3-propanediol and isosorbide in a molar ratio of diols to terephthalic acid or its alkyl ester of from about 1.1:1 to about 1.6:1 and a molar ratio of 1,3-propanediol to isosorbide of from about 2:1 to about 10:1; (b) reacting the mixture in an inert atmosphere at a temperature of about 180 to about 245&#xb0; C., with concurrent removal of a distillate comprising at least 80% of the water or alkanol volatile reaction product, wherein the distillate contains less than about 5 weight % 1,3-propanediol and less than 1 weight % isosorbide; and (c) continuing the reaction in the presence of a polycondensation catalyst at a pressure of about 0.25 to about 2 mm Hg and about 245 to about 260&#xb0; C. to form a 3GIT containing about 4 to about 20 mole % isosorbide units, based on the 3GIT.

Poly(1,3-propylene-co-1,4:3,6-dianhydro-D-sorbitol terephthalate) and manufacturing process

The present invention is a process for making a low color copolymer of ethylene glycol, isosorbide and terephthalic acid or dimethyl terephthalate. This copolymer, poly(ethylene-co-isosorbide) terephthalate, is useful for making bottles, hot-fill containers, films, sheet, fiber, strand and optical article applications. It can also be used to make polymer blends and alloys.

Process for making poly(ethylene-co-isosorbide) terephthalate polymer

Disclosed is a process for manufacturing an ester of 1,3-propanediol, comprising, contacting at a temperature of about 0.degree. C. to about 250.degree. C., ethylene, formaldehyde or a form of formaldehyde, a carboxylic acid, and a compound of the formula MZ.sub.n.Q.sub.t, wherein:

Manufacture of 1,3-propanediol esters from formaldehyde and ethylene

This invention concerns a process for the copolymerization of formaldehyde with cyclic ethers, the process comprising combining in a hydrocarbon solvent a cyclic ether, a cationic initiator comprising an anion formed from tetraphenyl borate derivatives, and mixtures thereof, and a cation, and anhydrous formaldehyde. These initiators provide high activity, high cyclic ether incorporation rates, and stability while minimizing the production of by-products.

Copolymerization of formaldehyde and cyclic ethers using initiators

Disclosed is a process for copolymerization of formaldehyde with cyclic ethers in the presence of organic nitro compounds. The process enhances the selectivity for the cyclic copolymer.

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Wilmington, DE, United States of America

Douglas J Adelman