发明名称 |
Process for the synthesis of mixtures of methane diphenyl diamine and its higher homologues with a controlled isomer distribution |
摘要 |
A process for preparing methane diphenyl diamine (MDA) or a mixture of methane diphenyl diamine (MDA) and its higher homologues with a controlled isomer distribution using a silanised zeolite have "shape selectivity". The mixture contains compounds having the following general formula (I): where R represents a hydrogen atom or a C<SUB>1 </SUB>to C<SUB>8 </SUB>(iso) alkyl group, a C<SUB>4 </SUB>to C<SUB>10 </SUB>cycloalkyl group or a C<SUB>6 </SUB>to C<SUB>12 </SUB>aromatic group and n is a whole number greater than or equal to one so as to give a functionally of 2 to 6.
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申请公布号 |
US6936737(B2) |
申请公布日期 |
2005.08.30 |
申请号 |
US20030363881 |
申请日期 |
2003.09.05 |
申请人 |
DOW GLOBAL TECHNOLOGIES INC. |
发明人 |
DE ANGELIS ALBERTO;FLEGO CRISTINA;FARIAS OTELLO;BOSETTI ALDO |
分类号 |
C07B61/00;C07C209/54;C07C209/78;C07C211/50;(IPC1-7):C07C209/54 |
主分类号 |
C07B61/00 |
代理机构 |
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主权项 |
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地址 |
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