Itaconix Corporation

University of New Hampshire

Yvon Durant

John B Shaw

Ming Cao

Mathieu Chirat

Bo Jiang

John Shaw

Martin Vince

Anita Augustyniak

Brian Luthi

James William Gordon

Melanie Jane Hughes

Timothy Mills

John Tsavalas

Jennifer Durant

Madeleine Eleanor Anderson

Madeleine Anderson

The present invention is directed at multibranched acid terminated oligomers of itaconic acid. Such multibranched acid terminated oligomers also contain six or more vinylidine groups providing unsaturations that can then be relied upon for subsequent Michael nucleophilic addition type reactions. The subject oligomers have particular use for treatment of damaged hair or skin.

Multibranched acid terminated oligomers of itaconic acid including vinylidine unsaturations

The present invention relates to copolymer formulations of poly(itaconic acid-co-2-acrylamido-2-methylpropane sulfonic acid) for dishwasher detergent compositions with a controlled amount of a second polymeric component.

Copolymer formulations of poly (itaconic acid-co-2-acrylamido-2-methylpropane sulfonic acid) for dishwasher detergent compositions

A monomer mixture containing asymmetric and symmetric esters of itaconic acid which can be used as a reactive diluent. In addition, copolymers resulting from the polymerization of such monomer mixture. The monomer mixture more specifically includes the asymmetric monomers methyl ethyl itaconate (MEI) and ethyl methyl itaconate (EMI) and the symmetric monomers dimethyl itaconate (DMI) and diethyl itaconate (DEI).

Asymmetric and symmetric monomer mixtures of esters of itaconic acid and corresponding copolymers

The present invention is directed at the decarboxylation and amidation of polyitaconic acid polymers. The polymers formed have useful dispersion properties and are suitable for use in the prevention of scaling.

Decarboxylation and amidation of polyitaconic acid polymers

The present invention relates to a mixture of sulfonated copolymers for detergent compositions which mixture of copolymers offer chelating capability as well as the ability to remain soluble in aqueous environments.

Sulfonated copolymers for detergent composition

The present invention relates to partial decarboxylation of polyitaconic acid polymers or copolymers. The partially decarboxylated resins are suitable for use in preparation of dispersions as well as for anti-scaling applications.

Partially decarboxylated polycarboxylic acid polymers

The present disclosure relates to a method for the emulsion polymerization of itaconic acid containing ester functionality, for example, the alkyl esters of itaconic acid known as alkylitaconate. More specifically, an ester of polyitaconic acid polymer is produced via emulsion polymerization and contains greater than 50% by weight of an ester of itaconic acid along with a selected particle size and levels of molecular weight and syndiotactacticity.

Emulsion polymerization of esters of itaconic acid

The present invention relates to soluble aqueous compositions comprising metal salts of selected polyitaconic acid (PIA) resins.

Soluble aqueous compositions of zinc salts of selected polyitaconic acid polymers

The present disclosure relates to a method for recovering a vinyl acid monomer by providing an aqueous fermentation broth which undergoes microbial fermentation of a nutrient medium containing a carbon source including at least one microorganism to produce a vinyl acid monomer. The method provides a direct overall route to bio-based polymers of the vinyl acid monomer, and in particular, polymers of polyitaconic acid.

Vinyl acid monomer recovery

The present invention relates to methods and polymers based upon vinyl type monomers that contain pendant carboxylic acid groups and ester group functionality. The polymerization methods include regulation of heat flow such that parameters of monomer conversion, acid functionality, molecular weight, tacticity and/or copolymer composition may be adjusted to selected levels for a selected application.

Regulated and continuous polymerization of polycarboxylic acid polymers

Esters of itaconic acid are polymerized in aqueous medium in the presence of seed particles. The seed particles may absorb the monomer and provide for polymerization to a desired particle size. The polymers that are produced may be employed in adhesives, paints, and paper formulations.

The present invention relates to methods and polymers based upon vinyl type monomers that contain pendant carboxylic acid groups and ester group functionality. The polymers may be prepared under selected conditions of partial neutralization to provide relatively high conversions and/or relatively high values of molecular weight and/or selected amounts of repeating unit tacticity.

Polycarboxylic acid polymers

The present invention relates to methods of forming absorbent materials and polymers used in absorbent materials, which are based upon vinyl type monomers that contain pendant carboxylic acid groups and ester group functionality. The polymers may be prepared under selected conditions of partial neutralization to provide relatively high conversions and/or relatively high values of molecular weight and/or selected amounts of repeating unit tacticity. The polymers may then be used in absorbing materials.

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Lee, NH, United States of America

Yvon Durant