| Share | Phrase |
|---|
| 23.60% | oxidized polyisobutene |
| 22.73% | oxidised polyisobutene |
| 18.41% | polyisobutene phenol |
| 8.04% | react polyisobutene [perform operation] |
| 5.85% | weight polyisobutene |
| 5.56% | maintain polyisobutene [perform operation] |
| 5.42% | molecular [structure] polyisobutene |
| 2.99% | polyisobutene comprise |
| 2.22% | low [size] polyisobutene |
| 1.96% | produce polyisobutene [perform operation] |
| 1.92% | polyisobutene [does] have |
| 1.24% | polyisobutene modal may |