发明名称 |
SULPHONATION PROCESS |
摘要 |
SULPHONATION PROCESS Crosslinked styrenic polymers may be sulphonated in a controlled manner in an organic solvent at elevated temperature using SO3 in the presence of a trialkyl phosphate. The process does not introduce further crosslinking into the polymer permitting it to have an extremely high water uptake. The resulting polymer is useful as a hydrogel.
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申请公布号 |
CA2056550(A1) |
申请公布日期 |
1992.07.31 |
申请号 |
CA19912056550 |
申请日期 |
1991.11.28 |
申请人 |
NOVACOR CHEMICALS INTERNATIONAL S.A. |
发明人 |
BEDELL, STANLEY F.;NEMPHOS, SPEROS P. |
分类号 |
C08F8/36;(IPC1-7):C08F8/36 |
主分类号 |
C08F8/36 |
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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