发明名称 |
PROCESSO PARA A PREPARACAO DE ANIDRIDOS SUCCINICOS,PROCESSO PARA A PREPARACAO DE UM DERIVADO DE ACIDO SUCCINICO,COMPOSICAO DE OLEO LUBRIFICANTE,E CONCENTRADO |
摘要 |
Process for the preparation of polyolefin-substituted succinic anhydrides essentially free from chlorine and in which the average molar ratio of succinic groups to polyolefin chains is greater than 1.3:1, which comprises heating a polyolefin with a molar excess of maleic anhydride, the polyolefin containing at least 70% of the terminal groupings in a structure having an alpha olefinic bond and/or structures in equilibrium with such alpha olefinic structures. |
申请公布号 |
BR8903909(A) |
申请公布日期 |
1990.03.27 |
申请号 |
BR19898903909 |
申请日期 |
1989.08.03 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
WILLIAM DANNENBERG;HENDRIK TIJMEN VERKOUW |
分类号 |
C07D307/60;C08F8/46;C10L1/188;C10L1/19;C10L1/2383;C10M107/22;C10M107/42;C10M129/93;C10M129/95;C10M133/56;C10N30/04 |
主分类号 |
C07D307/60 |
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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