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31.Amide stabilized formaldehyde polymers and process for preparing same 失效
Title translation: 酰胺稳定的甲醛聚合物及其制备方法公开(公告)号:US3131165A
公开(公告)日:1964-04-28
申请号:US84787159
申请日:1959-10-22
Applicant: HOECHST AG
Inventor: DIETER HERMANN HANS , EDGAR FISCHER
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32.
公开(公告)号:US2903467A
公开(公告)日:1959-09-08
申请号:US69020557
申请日:1957-10-15
Applicant: HOECHST AG
Inventor: EDGAR FISCHER
IPC: C07C51/093
CPC classification number: C07C51/093 , C07C57/52 , C07C53/21
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