Solution process
In the _LANXESS EP rubber solution process,
- a catalyst is used to produce EPM or EPDM in a hydrocarbon solvent in which the polymer dissolves as it is formed
- the viscous solution is short-stopped, washed and antioxidant is added; in the case of oil-extended grades, extender oil is added.
- the rubber solution is coagulated and residual hydrocarbons are stripped from the rubber using steam
- the wet rubber crumb is then dewatered and dried in the finishing segment of the process
- the dried rubber is finally baled and packaged.
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