Abstract: 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.
Type:
Grant
Filed:
February 3, 2021
Date of Patent:
January 9, 2024
Assignee:
ITACONIX CORPORATION
Inventors:
James William Gordon, Bo Jiang, Yvon Durant, John Shaw
Abstract: 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).
Type:
Grant
Filed:
December 9, 2021
Date of Patent:
November 14, 2023
Assignee:
ITACONIX CORPORATION
Inventors:
Yvon Durant, Madeleine Eleanor Anderson
Abstract: 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.
Type:
Grant
Filed:
December 18, 2018
Date of Patent:
August 11, 2020
Assignee:
Itaconix Corporation
Inventors:
Yvon Durant, Bo Jiang, Melanie Hughes, Timothy Mills
Abstract: 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.
Abstract: 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.
Abstract: 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.
Abstract: 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.
Abstract: 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.
Type:
Grant
Filed:
April 6, 2011
Date of Patent:
August 12, 2014
Assignees:
University of New Hampshire, Itaconix Corporation
Inventors:
Jennifer Durant, Yvon Durant, John Shaw
Abstract: 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.