| 发明名称 |
Removal of color material from water-soluble polymer solutions. |
| 摘要 |
<p>Color material is removed from aqueous solutions of water-soluble polysaccharide ether, e.g. cellulose ethers, by contact with an anion exchange resin. Preferred anion exchange resins are derived from epoxy-amine polymers, acrylic-divinylbenzene copolymer or especially styrene-divinylbenzene copolymer.</p> |
| 申请公布号 |
EP0384573(A1) |
申请公布日期 |
1990.08.29 |
| 申请号 |
EP19900300641 |
申请日期 |
1990.01.22 |
| 申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
CHRISTENSEN, STEPHEN B.;SCHULZ, GARY J.;KLING, SUSAN |
| 分类号 |
C08J3/00;A61K9/28;A61K9/36;C08B11/20;C08B37/00 |
主分类号 |
C08J3/00 |
| 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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