Segetis, Inc.

Gfbiochemicals Limited

Gfbiochemicals IP Assets B.v.

Matthew John Tjosaas

Brian Daniel Mullen

Cora Leibig

Dorie Janine Yontz

Marc Davis Scholten

Vivek Badarinarayana

Daniel Joseph Brunelle

Donald L Bunning

Louis A Kapicak

Tara Jane Mullen

Lee Richard Rieth

Robert Page Shirtum

Marc David Rodwogin

Andrew J Louwagie

Eric S Hall

Steven R Strand

Cora M Leibing

Lee R Rieth

Benjamin Sean Murrin

The invention describes processes to prepare levulinic acid, formic acid and/or hydroxymethyl furfural from various biomass materials.

Process to prepare levulinic acid

The invention describes methods of preparation and compositions of plasticizers. The plasticizers include at least 2 alkyl ketal ester moieties and have a molecular weight of greater than 300. In one aspect, the alkyl ketal ester moieties are levulinic ester ketals. Certain compositions contain at least one of an antioxidant, a UV stabilizer, a thermal stabilizer or mixtures thereof, present in the composition from about 0.01 to about 5.0 percent by weight of the total composition.

Stabilized levulinic ester ketals

Disclosed herein is a polyhydroxy ketal adduct obtained by the esterification of a hydrocarbon polyol by at least 1.5 equivalents of a ketocarboxy to produce an intermediate ketocarboxylic ester. The intermediate polyketocarboxylic ester is then ketalized to produce the polyhydroxyketal adduct, which can be used to provide a polymeric composition.

Polyhydroxy ketal ester adducts, methods of manufacture and uses thereof

Disclosed herein is a polyketal adduct obtained by forming an ester between a hydrocarbon polyol and a ketocarboxylic acid to produce an intermediate polyketocarboxylic ester. The intermediate polyketocarboxylic ester can be purified via crystallization to achieve purities of greater than 99.0% and then ketalized to produce the polyketal adduct, which can be used in polymer compositions. The polyketal adduct I is obtained at high purity and at high yield.

Polyketal adducts, methods of manufacture and uses thereof

A removal composition is described, having a plurality of abrasive particles, an organic amine, antioxidant, biocide, colorant, corrosion inhibitor, cosolvent, defoamer, dye, enzyme, light stabilizer, odor masking agent, plasticizer, preservative, rust inhibitor, surfactant, thickener, or a combination comprising at least one of the foregoing; from 0 to 1% water, based on the total weight of the removal composition; and a ketal adduct of formula (1) wherein Ris C1-6 alkyl, Ris hydrogen or C1-3 alkyl, each R, R, and Ris independently hydrogen or C1-6 alkyl, Rand Rare each independently hydrogen or C1-6 alkyl, a=0-3, and b=0-1.

Carboxy ester ketal removal compositions, methods of manufacture, and uses thereof

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Minneapolis, MN, United States of America

Matthew John Tjosaas