| 发明名称 |
Process for preparing xanthomonas heteropolysaccharide, heteropolysaccharide as prepared by the latter process and its use. |
| 摘要 |
<p>Process for preparing Xanthomonas heteropolysaccharide from Xanthomonas campestris NCIB 11854 and use of the latter e.g. as viscosity modifier in an aqueous solution, and in a drilling fluid and use in connection with well-treatments, and enhanced oil recovery.</p> |
| 申请公布号 |
EP0130647(A2) |
申请公布日期 |
1985.01.09 |
| 申请号 |
EP19840200932 |
申请日期 |
1984.06.27 |
| 申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
DOWNS, JOHN DAVID |
| 分类号 |
C09K8/08;C09K8/90;C12N1/20;C12P19/06;C12R1/64;(IPC1-7):C12P19/06;E21B43/25;C09K7/02;E21B33/138 |
主分类号 |
C09K8/08 |
| 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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