发明名称 |
Process for preparing N,N,N{40 ,N{40 -tetraphenyldiaminomethane |
摘要 |
N,N,N',N'-tetraphenyldiaminomethane, antioxidant for rubber, is prepared by reaction of 2 molar proportions of diphenylamine and 0.8-1.3 molar proportions of formaldehyde at room temperature. The reaction may be carried out in a storage container, for example a thermoplastic container which, holding the tetraphenyldiamonomethane, can be added to and will blend into a rubber mix.
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申请公布号 |
US4167526(A) |
申请公布日期 |
1979.09.11 |
申请号 |
US19740524947 |
申请日期 |
1974.11.18 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES LIMITED |
发明人 |
FARTHING, ALAN C.;NICHOLSON, ERIC S. |
分类号 |
C07C211/54;C07C67/00;C07C209/00;C07C209/18;(IPC1-7):C07C91/16 |
主分类号 |
C07C211/54 |
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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