Table 1.
Chemical composition of natural rubber (NR), grade SVR 3 L.
| Substance | Content, wt.% |
|---|---|
| Poly(cis-1,4-isoprene) | 91–96 |
| Protein and amino acids | 2–3 |
| Resins | 2–3 |
| Soot indicator | 0.5 |
| Volatiles | 0.8 |
| Transition metal compounds | <1 |
| Other | <1 |
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