发明名称 |
POLYETHYLENE GLYCOL COMPOUNDS AND PROCESS FOR MAKING |
摘要 |
A substituted polyethylene glycol compound and process for making. The compound has the formula RO(C2H4O)nH wherein R represents a C1-7 hydrocarbon group and n represents the average number of moles of C2H4O groups, ranging from 500 to 2000. The compound has a ratio of weight average molecular weight to a number average molecular weight in the range of from 1 to 1.1. The compound contains less than ten weight percent polyethylene glycol. The gist of the process is the use of an aprotic polar solvent. When the aprotic polar solvent is a polyether solvent, then the n value of the compound ranges from 100 to 2000. |
申请公布号 |
KR20070058534(A) |
申请公布日期 |
2007.06.08 |
申请号 |
KR20077006984 |
申请日期 |
2005.09.27 |
申请人 |
DOW GLOBAL TECHNOLOGIES INC. |
发明人 |
DAUGS EDWARD D.;APPELL ROBERT BRUCE;HIPPLER JEFFREY G.;KEEN BRIAN T. |
分类号 |
C08G65/30;C08G65/32;C08G65/329 |
主分类号 |
C08G65/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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