发明名称 |
Method for preparation of strong acid cation exchange resins |
摘要 |
An improved process for preparing strong acid cation exchange resins by sulfonation of wet crosslinked copolymer in the absence of organic swelling solvents is disclosed. This process involves dewatering a crosslinked poly(vinylaromatic) copolymer to selected residual moisture levels of 3 to 35%, followed by non-solvent sulfonation, to provide strong acid cation exchange resins having enhanced physical stability and that are free of chlorinated-solvent contaminants. |
申请公布号 |
EP1270609(B1) |
申请公布日期 |
2016.07.20 |
申请号 |
EP20020254077 |
申请日期 |
2002.06.12 |
申请人 |
ROHM AND HAAS COMPANY |
发明人 |
ROHRBACH, WILLIAM DOUGLAS;ROSENBAUM, BRUCE MAURICE |
分类号 |
C08F8/36;B01J39/20;C02F1/42;C08F2/18;C08F6/24;C08F212/00;C08F212/08;C08F212/36;C08J5/20;C08J9/00 |
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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