E.i. Dupont De Nemours and Company

Mark Allen Andrews

Garret D Figuly

Henry Keith Chenault

Kamlesh Kumar Bhatia

Paul Joseph Fagan

Alexander Borisovich Shtarov

Joseph Norman Hockman

Novel, crosslinked polymers using biomass derived materials, such as aldaric acids and derivatives, are provided. The polymers can be used as hydrogels and in antimicrobial compositions.

Crosslinked polymers containing biomass derived materials

Processes for preparing crosslinked polymers using biomass derived materials, such as aldaric acids and derivatives, are provided. The polymers can be used as hydrogels.

Preparation of crosslinked polymers containing biomass derived materials

Alpha, omega-difunctional aldaramides, in particular diaminoaldaramides, dihydroxyaldaramides, bis(alkoxycarbonylalkyl)aldaramides, and bis(carboxyalkyl)aldaramides, and processes for preparing the aldaramides are provided.

Alpha, omega-difunctional aldaramides

A process for preparing fluorinated alkyl carboxylate esters comprises reaction of a silver carboxylate or silver carboxylate precursor, such as silver (I) iodide with a fluorinated alkyl iodide and a carboxylic acid. Preferably the fluorinated alkyl iodide has the general formula CF(CF)CHCHI, wherein n is an integer in the range of from 1 to 29 and the carboxylic acid is acetic acid, acrylic acid or methacrylic acid.

Process for preparing fluorinated alkyl carboxylate esters

This invention concerns a process for the manufacture of anhydro- and dianhydro- hexitols, pentitols, and tetritols by the dehydration of sugar alcohols (alditols) in the presence of a dehydration catalyst and with the assistance of an inert gas sparge.

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Wilmington, DE, United States of America

Mark Allen Andrews