公开(公告)号：EP3360904A1

公开(公告)日：2018-08-15

申请号：EP17155645.9

申请日：2017-02-10

申请人： Evonik Degussa GmbH

发明人： WURSCHE, Roland ,  SCHWAGER, Florian ,  ADAM, Dieter ,  MICHLBAUER, Franz

IPC分类号： C08F6/00 ,  C08G61/08

CPC分类号： C08F6/001 ,  C08F6/005 ,  C08F132/04 ,  C08G61/08 ,  C08G2261/332 ,  C08G2261/3322 ,  C08G2261/418 ,  C08G2261/71 ,  C08L45/00 ,  C11B1/10 ,  C11B3/008 ,  C11B11/00 ,  Y02P20/544

摘要： The present invention relates to a process for producing cycloalkenamer-containing compositions, comprising the steps of:
a) converting at least one cycloalkene by ring-opening metathetic polymerization to obtain a polyalkenamer-containing product mixture, and
b) working up the product mixture to remove monomers and oligomers of the cycloalkenes to obtain the polyalkenamer-containing composition by extraction with CO 2 ,
wherein the extraction comprises at least two stages:
b1) an extraction with supercritical CO 2 , then
b2) an extraction with gaseous CO 2 and then
b3) an extraction with supercritical CO 2 .

公开(公告)号：EP3526263A1

公开(公告)日：2019-08-21

申请号：EP18703333.7

申请日：2018-02-09

申请人： Evonik Degussa GmbH

发明人： WURSCHE, Roland ,  SCHWAGER, Florian ,  ADAM, Dieter ,  MICHLBAUER, Franz

IPC分类号： C08F6/00 ,  C08G61/08 ,  C08F132/04 ,  C08G61/12 ,  C11B1/10 ,  C11B3/00 ,  C11B11/00 ,  C08L45/00

摘要： The present invention relates to a process for producing cycloalkenamer-containing compositions, comprising the steps of: a) converting at least one cycloalkene by ring-opening metathetic polymerization to obtain a polyalkenamer-containing product mixture, and b) working up the product mixture to remove monomers and oligomers of the cycloalkenes to obtain the polyalkenamer-containing composition by extraction with CO 2 , wherein the extraction comprises at least two stages: b1) an extraction with supercritical CO 2 , then b2) an extraction with gaseous CO 2 and then b3) an extraction with supercritical CO 2 .