CONTINUOUS PROCESS FOR MAKING POLYETHER POLYOLS HAVING HIGH POLYMERIZED ETHYLENE OXIDE CONTENT USING A DOUBLE METAL CYANIDE CATALYST COMPLEX AND A MAGNESIUM, GROUP 3 - GROUP 15 METAL OR LANTHANIDE SERIES METAL COMPOUND |
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| 申请号 | US15579595 | 申请日 | 2016-06-15 | 公开(公告)号 | US20180162995A1 | 公开(公告)日 | 2018-06-14 |
| 申请人 | Dow Global Technologies LLC; | 发明人 | David A. Babb; Jean-Paul Masy; Mattias Schaefer; William A. Koonce; Donald Cameron; | ||||
| 摘要 | 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. | ||||||
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| 说明书全文 | |||||||
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