Low viscosity suspending vinyl copolymers

摘要

A rheology modifier copolymer of formula (I), wherein A is a macromonomer; B is an acrylic or methacrylic acid or salt thereof; C is a polyacidic vinyl monomer selected from maleic, fumaric, itaconic, citraconic and acids combinations thereof and anhydrides and salts thereof; and D optionally when present is a crosslinking monomer.