| 发明名称 |
Novel phenolic antioxidants, their preparation and their use |
| 摘要 |
2,2-BIS-(ALKYL-4'-HYDROXYPHENYL)-CYCLOALKYL-(ALKYL) CARBONIC ACID ESTERS ARE PREPARED BY CONDENSATION OF ALKYL PHENOLS WITH 2-KETO-CYCLOALKYL CARBONIC ACID ESTERS IN THE PRESENCE OF ACIDIC CATALYSTS AND OPTIONALLY OF MERCAPTO DERIVATIVES. The product are useful for the stabilization of polymers against the decomposition by light and heat.
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| 申请公布号 |
US4093592(A) |
申请公布日期 |
1978.06.06 |
| 申请号 |
US19770778706 |
申请日期 |
1977.03.17 |
| 申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
MAYER, NORBERT;PFAHLER, GERHARD;WIEZER, HARTMUT |
| 分类号 |
C08K5/00;C07C69/025;C08K5/13;C08L23/00;C08L33/00;C08L33/02;C08L101/00;C09K15/08;(IPC1-7):C07C69/76;C08K9/00 |
主分类号 |
C08K5/00 |
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