Invention Grant
- Patent Title: Method of preparing polyaminopolyphenylmethanes
- Patent Title (中): 制备聚酰胺基苯乙烯的方法
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Application No.: US763967Application Date: 1977-01-31
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Publication No.: US4052456APublication Date: 1977-10-04
- Inventor: Edward T. Marquis , Lewis W. Watts, Jr.
- Applicant: Edward T. Marquis , Lewis W. Watts, Jr.
- Applicant Address: NY New York
- Assignee: Texaco Development Corporation
- Current Assignee: Texaco Development Corporation
- Current Assignee Address: NY New York
- Main IPC: C07C85/08
- IPC: C07C85/08
Abstract:
Covers a method of preparing diaminodiphenylmethanes and higher homologues thereof which comprises the step of condensing aniline and formaldehyde in the presence of an aluminum silicide catalyst.
Public/Granted literature
- US5143048A Disposable infant heel warmer Public/Granted day:1992-09-01
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