运动会入场式表演专利名称：Process for the preparation of alpha-beta unsaturated N-substituted carboxylic acid
amides, alpha-beta unsaturated N-
中山陵园风景区substituted carboxylic acid amides and their
船简笔画彩色u for preparing ion exchangers
发明人：GOOSSENS, BERNHARD, DIPL.-CHEM.,秋天的怀念
DR.,KUSTER, ERICH, DIPL.-CHEM.,
DR.,DAHMEN, KURT, DIPL.-CHEM.,
DR.,BARTHELL, EDUARD, DIPL.-CHEM., DR.
申请号：EP79105340.8
汽车用品品牌申请日：19791221
公开号：EP0013416B1
公开日：
19850918
专利内容由知识产权出版社提供
摘要：The invention relates to a process for the preparation of alpha , beta -unsaturated N-substituted carboxylic acid amides, novel alpha , beta -unsaturated N-substituted carboxylic acid amides, a process for the polymerization of the novel alpha , beta -unsaturated N-substituted carboxylic acid amides, including the polymers, and the u of the polymers as dimentation, flocculating, dewatering and retention aids, as additives for mineral oils, and as ion exchangers. The
alpha , beta -unsaturated N-substituted carboxylic acid amides are prepared by transamidation of beta -hydroxy or beta -alkoxy carboxylic acid amides with primary amines and heating of the N-substituted beta -hydroxy or beta -alkoxy carboxylic acid amides obtained as intermediate products in the vapor pha in the prence of catalysts. Primary amines are preferably ud in the
ppt讲稿conversion which have no hydrogen beta to the amino group. The alpha , beta -unsaturated carboxylic acid amides may be neutralized and/or quaternized and polymerized by process which as such are known alone or with other comonomers, and preferably acrylic or methacrylic acid derivatives such as acrylamide, to give cationic polymers. The polymers are suited for u as flocculating and dimentation aids, as dewatering and retention aids in papermaking, as additives for mineral oils, and as ion exchangers.
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申请人：CHEMISCHE FABRIK STOCKHAUSEN GMBH
地址：Bäkerpfad 25 D-47805 Krefeld DE
国籍：DE
代理机构：Klöpsch, Gerald, Dr.-Ing. Patentanwalt
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