发明名称 |
METHOD FOR PRODUCING POLYETHER |
摘要 |
<p>To provide a method for producing a polyether having a weight average molecular weight of from 15,000 to 550,000. The method for producing a polyether having a weight average molecular weight of from 15,000 to 550,000, comprises subjecting a cyclic monomer to a ring-opening addition reaction to an initiator having at least one active hydrogen atom per molecule in the presence of a double metal cyanide complex catalyst and an organic solvent, wherein the relative permittivity of the organic solvent is at most 18, and the amount of the organic solvent is from 6 to 300 parts by mass per 100 parts by mass in total of the initiator and the cyclic monomer.</p> |
申请公布号 |
EP2840103(A4) |
申请公布日期 |
2015.09.23 |
申请号 |
EP20130778633 |
申请日期 |
2013.04.11 |
申请人 |
ASAHI GLASS COMPANY, LIMITED |
发明人 |
HAYASHI, TOMOHIRO;SUZUKI, CHITOSHI;ARAI, TAKEAKI;TANAKA, HIDEAKI |
分类号 |
C08G65/10;C08G65/26;C08G65/336 |
主分类号 |
C08G65/10 |
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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