2-Butenedioic acid (2E)-, dibutyl ester, polymer with ethenyl acetate 2-Butenedioic acid (E)-, dibutyl ester, polymer with ethenyl acetate 25989-00-8 Ethenyl acetate, polymer with dibutyl 2-butenedioate (E) Vinyl acetate-dibutyl fumarate copolymer