Lanxess Keltan® 4450S Ethylene-Propylene Rubber

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Lanxess Keltan® 4450S Ethylene-Propylene Rubber
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	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. Information provided by Lanxess.
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Physical Properties	Original Value	Comments

Density	0.860 g/cc
Mooney Viscosity	42 @Temperature 125 °C	(1+4); ISO 289
Storage Temperature	>= 30.0 °C

Processing Properties	Original Value	Comments
Shelf Life	36.0 Month

Descriptive Properties
Content	4.3 percent	ENB, ASTM D6047
	52 percent	Ethylene, ASTM D3900

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PLANY8564 / 208957

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