发明名称 |
Process for preparing high molecular weight compounds. |
摘要 |
<p>A process for preparing polyoxyalkylene high molecular weight compounds having an average molecular weight of more than 20,000 and being soluble in solvents and moldable by addition-polymerizing ethylene oxide alone or a mixture of alkylene oxides containing ethylene oxide to an organic compound having at least 2 active hydrogen groups to produce a polyhydroxyl compound having an average molecular weight of not less than 1,000, and esterifying the polyhydroxyl compound with a polycarboxylic acid, its anhydride or its lower alkyl ester.</p> |
申请公布号 |
EP0089038(A1) |
申请公布日期 |
1983.09.21 |
申请号 |
EP19830102461 |
申请日期 |
1983.03.12 |
申请人 |
DAI-ICHI-KOGYO SEIYAKU CO., LTD. |
发明人 |
FUJITA, TAKESHI;MORI, SHIGEO;KATAOKA, HIRONORI C/O DAI-ICHI KOGYO SEIYAKU CO.,;TANIUCHI, AKIRA |
分类号 |
C08G63/668;(IPC1-7):08G63/66 |
主分类号 |
C08G63/668 |
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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