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1.发明授权Condensation products of urea,a saturated aldehyde of 3-4 carbon atoms and formaldehyde and process for making them 失效尿素的浓缩产物，3-4碳原子和甲醛的饱和醛和制备它们的方法
公开(公告)号：US3441539A
公开(公告)日：1969-04-29
申请号：US3441539D
申请日：1964-07-10
Applicant: HOECHST AG
Inventor： SCHAFER HELMUT KARL , KOHLHAAS RUDOLF
CPC classification number: C05C9/02
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