Patent ID: 9487423
Filing Date: 2016-11-08
CPC Classification: B01F,C01P,C02F,C08F,C09C

Claim Text:
1. A partially decarboxylated polyitaconic acid homopolymer or copolymer comprising the following structure: wherein one or more of the carboxylic acid groups is decarboxylated and one or more of the carboxylic acid groups are optionally in metallic salt form; wherein the polyitaconic repeating unit “a” is present at a level of 50 wt. % to 100 wt. % and M wherein the level of said decarboxylation is at or above 40 mole % of carbon dioxide evolved per molar equivalent of itaconic acid in said polymer or copolymer based upon a maximum level of decarboxylation of 200 mole %.