发明名称 |
Process for removing hydrogenation catalyst residue from hydrogenated polymers |
摘要 |
This invention relates to a process for removing hydrogenation catalyst residue from hydrogenated polymers comprising: (I) treating a polymer cement comprising an unsaturated polymer in an inert water-immiscible liquid with a hydrogen source in the presence of a hydrogenation catalyst; (II) contacting the polymer cement of step (I) with one or more aqueous solution(s) of a weak acid having a pKa greater than 1.5 (determined in water at 25° C.); (III) contacting the polymer cement of step (II) with one or more aqueous solution(s) of a weak base having a pKa smaller than 10.5; and (IV) separating the hydrogenated polymer.
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申请公布号 |
US2003139569(A1) |
申请公布日期 |
2003.07.24 |
申请号 |
US20020203142 |
申请日期 |
2002.12.03 |
申请人 |
HOFMAN ADRIANUS HENDRICK;DE SMET HELEEN JOHANNA AUGUSTA;VILLENA ALAN;WIRTZ ANNE GENVIEVE CHARLOTTE |
发明人 |
HOFMAN ADRIANUS HENDRICK;DE SMET HELEEN JOHANNA AUGUSTA;VILLENA ALAN;WIRTZ ANNE GENVIEVE CHARLOTTE |
分类号 |
C08K5/00;C08C2/04;C08C19/02;C08F6/02;C08F6/08;C08F8/04;C08F297/04;C08L53/02;(IPC1-7):C08G2/00 |
主分类号 |
C08K5/00 |
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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