发明名称 |
A CRUDE OIL-ADDITIVE COMPOSITION OF INHIBITING THE DEPOSITION OF PARAFFINS AND FOR IMPROVING THE FLOW PROPERTIES OF SAID CRUDE OIL |
摘要 |
<p>The present invention provides grafted ethylene copolymers usable more especially as additives for inhibiting the depositions in crude oils. Said copolymer being formed of ethylene and at least one monomer with ethylenic unsaturation, chosen from vinyl esters of C2 to C18 monocarboxylic acids, the alkyl esters in the C1 to C12 range of unsaturated monocarboxylic acids from the C3 to C12 range and the alpha , beta -unsaturated dicarboxylic compounds, on which are fixed the grafts of a homo or copolymer of an alpha , beta -unsaturated monocarboxylic acid ester with at least one alkanol of a chain length equal to or greater than C12 and at least 20% of which is of a chain length equal to or greater than C22. Such copolymers may be used more especially as additives for inhibiting the deposition of paraffins and for improving the flow properties of the crude oils.</p> |
申请公布号 |
IN164275(B) |
申请公布日期 |
1989.02.11 |
申请号 |
IN1985DE87619 |
申请日期 |
1985.10.18 |
申请人 |
SOCIETE NATIONALE ELF AQUITAINE |
发明人 |
MEUNIER, GILLES;BROUARD, RENE;DAMIN, BERNARD;LOPEZ, DENIS |
分类号 |
F17D1/17;C08F255/02;C10L1/195;(IPC1-7):C10N20/02 |
主分类号 |
F17D1/17 |
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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