公开(公告)号：US10160830B2

公开(公告)日：2018-12-25

申请号：US15579595

申请日：2016-06-15

Applicant: Dow Global Technologies LLC

Inventor： David A. Babb ,  Jean-Paul Masy ,  Mattias Schaefer ,  William A. Koonce ,  Donald Cameron

IPC: C08G65/26

Abstract: An alkylene oxide mixture containing greater than 50% by weight ethylene oxide is continuously polymerized in the presence of a double metal cyanide polymerization catalyst and certain magnesium, Group 3-Group 15 metal or lanthanide series metal compounds. The presence of the magnesium, Group 3-Group 15 metal or lanthanide series metal compound permits the polymerization to be performed continuously without premature deactivation of the double metal cyanide catalyst.

公开(公告)号：US20180162995A1

公开(公告)日：2018-06-14

申请号：US15579595

申请日：2016-06-15

Applicant: Dow Global Technologies LLC

Inventor： David A. Babb ,  Jean-Paul Masy ,  Mattias Schaefer ,  William A. Koonce ,  Donald Cameron

IPC: C08G65/26

CPC classification number: C08G65/2609 ,  C08G65/2651 ,  C08G65/2654 ,  C08G65/266 ,  C08G65/2663 ,  C08G65/2696 ,  C08G2650/22 ,  C08G2650/58

Abstract: An alkylene oxide mixture containing greater than 50% by weight ethylene oxide is continuously polymerized in the presence of a double metal cyanide polymerization catalyst and certain magnesium, Group 3-Group 15 metal or lanthanide series metal compounds. The presence of the magnesium, Group 3-Group 15 metal or lanthanide series metal compound permits the polymerization to be performed continuously without premature deactivation of the double metal cyanide catalyst.