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Keltan® 4450S

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

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