发明名称 |
Cross-linked gas selective membranes |
摘要 |
Membranes which are used for the separation of gases comprise cellulose acetate membranes which have been crosslinked with an organic titanate. The membranes are prepared by solvent exchanging a cellulose acetate membrane through a series of baths of decreasing polarity followed by treating the membrane with a crosslinking agent comprising an organic titanate in an organic solvent solution which possesses a relatively low polarity. The resulting membranes will retain the original excellent separation characteristics while concomitantly possessing greater temperature and pressure stability and flux characteristics.
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申请公布号 |
US4932986(A) |
申请公布日期 |
1990.06.12 |
申请号 |
US19890349003 |
申请日期 |
1989.05.09 |
申请人 |
ALLIED-SIGNAL INC. |
发明人 |
KULKARNI, SUDHIR S.;YATES, STEPHEN F.;SWAMIKANNU, A. XAVIER |
分类号 |
B01D67/00;B01D71/16;C08B15/00 |
主分类号 |
B01D67/00 |
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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