prop-2-enoic acid; acrylic acid; Carbopol; CARBOMER; Acrylic Copolymer (Class)Poly(Acrylic Acid-Co-Butadiene-Co-2-Hydroxyethyl Acrylate-Co-Styrene)Acrylate Copolymer (Class)Poly(Acrylic Acid-Co-Butadiene-Co-2-Hydroxyethyl Acrylate-Co-Styrene) CAS NO:9063-87-0