Keltan® 4450S
Amorphous ethylene-propylene rubber with medium ENB (ethylidene norbornene) content and a medium Mooney viscosity. The polymer structure of this product is characterized by a broader molecular weight distribution in combination with a higher level of Controlled Long Chain Branching compared to the Keltan® 4450. The structure ensures superior mixing and milling behavior, fast filler incorporation and high extrusion speeds. Typical applications for this product are automotive solid profiles and molded goods
| Property | Nominal Value with Unit | Test Method |
|---|---|---|
| Mooney Viscosity ML (1+4) at 125 °C | 42 MU | ISO 289 / ASTM D1646 |
| Ehtylene Content | 52 wt% | ASTM D3900 |
| ENB Content | 4.3 wt% | ASTM D6047 |
| Molecular Weight Distribution | CLCB | Internal Method |

