公开(公告)号：BR8405855A

公开(公告)日：1985-09-17

申请号：BR8405855

申请日：1984-11-16

Applicant: STAMICARBON B B

Inventor： KLEINTJENS LUDOVICUS ANNA LEON

IPC: C08F6/28 ,  C08C1/00 ,  C08C3/02 ,  C08F6/00 ,  C08F6/06 ,  C08F6/10 ,  C08F6/16 ,  C08F210/00 ,  C08F210/16 ,  C08F210/18

Abstract: The invention relates to a process for purifying ethylene-alkene-diene rubbers by extraction with an extractant chosen from substances with a critical temperature below 435 °K at a temperature above the critical temperature of the extractant and a pressure above the critical pressure of the extractant.