E.i. Dupont De Nemours and Company

Nutrition & Biosciences USA 4, Inc.

Kathleen Opper

John P O'Brien

Christian Peter Lenges

Natnael Behabtu

Vahid Sendijarevic

Aisa Sendijarevic

Ross Stefan Johnson

Alicia C Briegel

Douglas J Adelman

Christian Herbert

Vindhya Mishra

Geraldus Gerardus Johannes Schennink

Tizazu H Mekonnen

Karin Molenveld

Ibrahim Sendijarevic

Shalini Saxena

Andreas Jorgen Wego

Andreas Jürgen Wego

Marinella Bettine Van Leeuwen

A process is disclosed herein comprising the steps:

Process for making polyacrylonitrile fibers

The disclosure generally relates to poly alpha-1,3-glucan compositions and articles containing them. In particular interest is comprising poly alpha-1,3-glucan ester derivatives. The poly alpha-1,3-glucan derivatives are useful in thermoprocesses and in particular, injection molding processes.

Polyalpha-1,3-glucan esters and articles made therefrom

Molded articles are disclosed herein, the molded article comprising a polysaccharide, wherein the polysaccharide comprises i) poly alpha-1,3-glucan; ii) poly alpha-1,3-1,6-glucan; iii) a graft copolymer that comprises (A) a backbone comprising dextran with a weight-average molecular weight (Mw) of at least about 100000 Daltons, and (B) poly alpha-1,3-glucan side chains comprising at least about 95% alpha-1,3-glucosidic linkages; or iv) a composition comprising a poly alpha-1,3-glucan ester compound as disclosed herein. Optionally, the molded articles can further comprise a plasticizer and/or starch. The molded articles can be useful as a container, a handle, packaging, a tray, a bottle, a cup, a sheet, a disposable food packaging item, an automotive part, a casing for an electronic device, or a toy.

Molded article comprising polysaccharide

The present invention is a solution comprising poly(&#x3b1;(1&#x2192;3) glucan) and an ionic liquid. The solution can further contain a non-solvent that is water or an ionic liquid. The solution is suitable for use as a spinning solution for the preparation of fibers of poly(&#x3b1;(1&#x2192;3) glucan) without the requirement of first derivatizing the poly(&#x3b1;(1&#x2192;3) glucan).

Fiber composition comprising 1,3-glucan and a method of preparing same

This invention pertains to a novel processing for preparing fibers from poly(&#x3b1;(1&#x2192;3)glucan). The fibers prepared according to the invention, have 'cotton-like' properties, are useful in textile applications, and can be produced as continuous filaments on a year-round basis. The process comprises solution spinning a 5-20% solids concentration of poly(&#x3b1;(1&#x2192;3)glucan) in an aqueous alkali metal hydroxide, in particular NaOH at concentration of 2 to 10 weight-%, and coagulating the spun fiber in an acid coagulation liquid.

Process for preparing polysaccharide fibers from aqueous alkali metal hydroxide solution

This invention pertains to a novel solution composition useful for preparing fibers from poly(&#x3b1;(1&#x2192;3) glucan). The fibers prepared according to the invention, have 'cotton-like' properties, are useful in textile applications, and can be produced as continuous filaments on a year-round basis. The solution comprises a 5-20% solids concentration of poly(&#x3b1;(1&#x2192;3) glucan) in an aqueous alkali metal hydroxide, in particular NaOH at concentration of 2 to 10 weight-%.

Composition for preparing polysaccharide fibers

This invention pertains to a novel process for preparing fibers from poly(&#x3b1;(1&#x2192;3) glucan). The fibers prepared according to the invention, have 'cotton-like' properties, are useful in textile applications, and can be produced as continuous filaments on a year-round basis. The process comprises solution spinning from a novel solution of poly(&#x3b1;(1&#x2192;3) glucan) in a mixture of water and N-methylmorpholine-N-oxide followed by coagulation in a liquid coagulant that comprises a liquid that is not water.

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Wilmington, DE, United States of America

Kathleen Opper