| 发明名称 |
PHENOLIC ANTIOXIDANT PROCESS |
| 摘要 |
3,5-dialkyl-4-hydroxybenzyl-substituted benzene compounds are made by reacting 2,6-dialkyl-4-methoxymethyl phenols with a benzene compound having an unsubstituted nuclear position in an inert solvent and in the presence of sulfuric or sulfonic acid catalyst while distilling methanol by-product from the reaction mixture as it forms. |
| 申请公布号 |
EP0420025(A3) |
申请公布日期 |
1992.04.01 |
| 申请号 |
EP19900118038 |
申请日期 |
1990.09.19 |
| 申请人 |
ETHYL CORPORATION |
发明人 |
GOODARD, LLOYD EDWIN;MINA, GEORGE LOUIS;HEIDEBRECHT, GARY DEAN |
| 分类号 |
B01J27/053;B01J31/02;C07B61/00;C07C37/16;C07C39/15;C07C39/17;C09K15/08 |
主分类号 |
B01J27/053 |
| 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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