Butyl Rubber IIR is a copolymer of isobutylene and a small amount of isoprene. Bromobutyl Rubber BIIR is a brominated copolymer of isobutylene and a isoprene. chlorobutyl Rubber CIIR is a chlorinated copolymer of isobutylene and a isoprene.
Classification
| Grade | Mooney Viscocity ML(1+4) | AN(%) | Key Features | Purpose |
|---|---|---|---|---|
| - | - | - | - | - |