Synonyms: Butyl rubber;Isobutylene/isoprene copolymer;Poly(isobutylene-co-isoprene);2-Methyl-1,3-butadiene polymer with 2-methyl-1-propene;1,3-BUTADIENE, 2-METHYL-, POLYMER WITH 2-METHYL-1-PROPENE;62493-92-9;Butyl rubber, brominated;AC1L1XM2;isobutylene-isoprene copolymer;LS-2851;Chlorinated isobutylene, isoprene polymer;Isobutylene, isoprene polymer, brominated;Isobutylene-isoprene copolymer, chlorinated;2-methylbuta-1,3-diene; 2-methylprop-1-ene;2-methylbuta-1,3-diene - 2-methylprop-1-ene (1:1);1,3-Butadiene, 2-methyl-, polymer with 2-methyl-1-propene, brominated;1,3-Butadiene, 2-methyl-, polymer with 2-methyl-1-propene, chlorinated;68081-82-3;68441-14-5;9006-49-9;9010-85-9