2-Butenedioic acid (2Z)-, dibutyl ester, polymer with ethenyl acetate and 2-propenoic acid 2-Butenedioic acid (Z)-, dibutyl ester, polymer with ethenyl acetate and 2-propenoic acid 29861-55-0 Vinyl acetate, dibutyl maleate, acrylic acid terpolymer