发明名称 |
POLYOXYALKYLENE MONOALKYL ETHER, PROCESS FOR PRODUCING THE SAME, POLYMERIZABLE POLYOXYALKYLENE MONOALKYL ETHER DERIVATIVE, POLYMER OF SAID DERIVATIVE AND DISPERSANT COMPRISING SAID POLYMER |
摘要 |
A polyoxyalkylene monoalkyl ether which gives, in gel permeation chromatography, a chromatogram which satisfies a relation expressed by an equation: S1/S0<=0.15, wherein S1 represents the area under a portion of the chromatogram from the start of elution to the earliest elution time when the intensity of the refractive index has a value of L/3, L representing the shortest distance between the greatest maximum point of the intensity of the refractive index and the base line and S0 represents the area under a portion of the chromatogram from the start of elution to an elution time when the intensity of the refractive index has the greatest maximum value; a process for producing the above ether comprising adjusting the content of water in a reactor, which is used in addition polymerization of alkylene oxides with addition to a monohydric alcohol, so as to satisfy an equation: Wix(Cf-Ci)/V<=10, wherein the content of water in the reactor is obtained by placing a solvent having a content of water Ci (ppm) in an amount Wi (g) in the reactor having an inner volume V (ml), stirring the solvent to clean the reactor, removing the solvent from the reactor and obtaining a content of water Cf (ppm) in the removed solvent; a polymerizable derivative of the above ether; a polymer of this derivative, and a dispersant comprising this polymer. A high purity polyoxyalkylene monoalkyl ether can be obtained and the dispersant comprising the polymer derived from this ether have an excellent dispersing property.
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申请公布号 |
US2002161267(A1) |
申请公布日期 |
2002.10.31 |
申请号 |
US19990332892 |
申请日期 |
1999.06.15 |
申请人 |
NOF CORPORATION, TOKYO, JAPAN |
发明人 |
ITOH AKINORI;HONDA SUSUMU;MATSUI TATSUYA;HAYASHI YOSHIHIRO |
分类号 |
C08F283/06;C08G65/26;C08L71/02;(IPC1-7):C07C43/00 |
主分类号 |
C08F283/06 |
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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