发明名称 |
Manufacture of cation exchange resins by pressurized sulfonation |
摘要 |
Cation exchange resins are prepared by sulfonating copolymer beads in the presence of a swelling solvent under pressure. Pressure sulfonation shortens cycle times and requires less energy while maintaining or improving product quality.
|
申请公布号 |
US5721279(A) |
申请公布日期 |
1998.02.24 |
申请号 |
US19970789451 |
申请日期 |
1997.01.27 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
FOSTER, KENNETH L.;WESTPHAL, NATALIE N.;SUBRAMONIAN, SURESH |
分类号 |
B01J39/20;C08F8/36;C08F212/34;(IPC1-7):C08F8/36 |
主分类号 |
B01J39/20 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|