发明名称 |
Novel surfactants based on poly(alkylene carbonate)s |
摘要 |
A polyether polycarbonate block copolymer nonionic surface-active agent and method for making the same. The polyether polycarbonate surface active agent is comprised of a hydrophilic portion comprised of a polymer selected from the group consisting of a polyoxyalkylene polyether, a saccharide, a saccharide polyoxyalkylenate, a polycarbonate having a carbon dioxide content of from about 1 to 15 molar percent and mixtures thereof and a hydrophobic portion comprising alkylene and carbonate units arranged in alternating or random order to form a poly(alkylene carbonate) having a total carbon dioxide content of from about 25 to 50 molar percent and a total molecular weight of from about 300 to 10,000. The hydrophobic portion is bonded to the hydrophilic portion at each side of a reactive hydrogen. The surface active agent is prepared by polymerizing the hydrophilic portion with the hydrophobic portion in a weight ratio of about 10:90 to 90:10.
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申请公布号 |
US4866143(A) |
申请公布日期 |
1989.09.12 |
申请号 |
US19880184585 |
申请日期 |
1988.04.21 |
申请人 |
BASF CORPORATION |
发明人 |
GAGNON, STEVEN D.;DEXHEIMER, EDWARD M. |
分类号 |
B01F17/42;B01F17/00;B01F17/52;B01F17/56;C08G64/00;C08G64/18;C11D1/76;C11D3/37 |
主分类号 |
B01F17/42 |
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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