E.i. Dupont De Nemours and Company

Dupont Industrial Biosciences Usa, LLC

Nutrition & Biosciences USA 4, Inc.

Dhiren V Patel

Timothy Allan Bell

Dean M Fake

Tyler D Pritchett

Scott M Herkimer

Joseph Anthony Perrotto

Robert A McMillen

Michael Lee Rudolph

Harry J Spinelli

Robert P Held

An-Gong Yeh

James Lewis Hohman, Jr

Suriyanarayanan Dorai

Michael J Eiseman

Yia-Ching Ray

Sandra L Witman

James R Cavall

Sarah E Ochsenhirt

William W Goudie

Robert Paul Held

James L Hohman

Harry Joseph Spinelli

Disclosed herein are compositions comprising polysaccharide particles with an average size of about 0.1-10 mm. These particles comprise at least (i) about 50%-90% by weight water or an aqueous solution, and (ii) about 10%-50% by weight insoluble alpha-glucan, or an insoluble cationic ether thereof, comprising alpha-1,3-glycosidic linkages and having a weight-average degree of polymerization (DPw) of at least about 100. Further disclosed are methods of preparing these compositions, as well as systems for storing and/or moving them.

Flowable bulk granular polysaccharide

Flowable bulk granular alpa-glucan

The invention provides an apparatus for preparing a relief printing form from a photosensitive element. More specifically, this invention describes an apparatus for preparing a relief form in an environment having controlled oxygen concentration during exposure to actinic radiation. The apparatus includes means for exposing a photosensitive element having an in-situ mask to actinic radiation through the in-situ mask in an environment having an inert gas and a concentration of oxygen between 190,000 and 100 ppm, and treating the exposed element to form the relief printing form having a pattern of raised surface areas.

Apparatus for preparing relief printing form

A relief printing form is prepared from a photosensitive element in an environment having controlled oxygen concentration during exposure to actinic radiation. An in situ mask is formed on a photosensitive element, the element is exposed to actinic radiation through the in-situ mask in an environment having an inert gas and a concentration of oxygen between 190,000 and 100 ppm, and the exposed element is treated to form the relief printing form having a pattern of raised surface areas.

Device and method for preparing relief printing form

A process is provided in which a pigment is oxidated with ozone in an aqueous environment in which the mixture of ozone, water and pigment is subjected to a dispersive mixing operation; and/or the pH of the mixture is maintained in a range of 6-8, whereby the pigment is self-dispersing and preferably has an acid value of less than 3 &#x3bc;moles/M. Pigments from this process and ink jet inks containing the self-dispersing pigments, are also provided.

Self-dispersing pigment and process of making and use of same

Polyether glycols, especially poly(tetramethylene ether) glycols, having a narrow molecular weight distribution (e.g., Mw/Mn=1.2 to 1.80), are made by a process which consists of separating the low molecular weight fraction in an ultrafiltration module. In these units, molten PTMEG is fed at temperatures in the range of 30.degree. to 150.degree. C. and pressures ranging between 25 and 1500 psi. The PTMEG retentate from the ultrafiltration unit is also characterized by water content &lt;25 ppm and low to negligible concentration of oligomeric cyclic ethers.

Reducing molecular weight polydispersity of polyether glycols by

Growing community of inventors

Hockessin, DE, United States of America

Dhiren V Patel