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公开(公告)号:US06878797B2
公开(公告)日:2005-04-12
申请号:US10125933
申请日:2002-04-19
申请人: Kris A. Berglund , Parminder Agarwal , Qiuyue Yu , Adam Harant
发明人: Kris A. Berglund , Parminder Agarwal , Qiuyue Yu , Adam Harant
IPC分类号: C11D3/37 , C08F222/40 , C08G73/10 , C08G73/12 , C08G69/08 , C08F4/46 , C08F6/00 , C08G63/00 , C08G73/00
CPC分类号: C08F222/40 , C08G73/121
摘要: A process for producing alkali metal polymaleimide salts by alkaline hydrolysis of maleimide polymers prepared by polymerization of maleimide monomers in the presence of a metal oxide and alcohol initiator or a base. In particular, the process produces alkali metal polymaleimide salts with particular ratios of C—N and C—C connected maleimide-derived monomer units which are dependent on the particular initiator used to synthesize the maleimide polymer. The alkali metal polymaleimide salts, which have chelating and anti-scaling properties, are useful as chelating agents and detergent builders and as such are suitable biodegradable replacements for synthetic polymers and sodium polyaspartate.
摘要翻译: 通过在金属氧化物和醇引发剂或碱的存在下通过马来酰亚胺单体聚合制备的马来酰亚胺聚合物的碱水解生产碱金属聚马来酰亚胺的方法。 特别地,该方法产生具有特定比例的C-N和C-C连接的马来酰亚胺衍生的单体单元的碱金属聚马来酰亚胺盐,其取决于用于合成马来酰亚胺聚合物的特定引发剂。 具有螯合和抗结垢性能的碱金属聚马来酰亚胺盐可用作螯合剂和洗涤剂助洗剂,因此适用于合成聚合物和聚天冬氨酸钠的可生物降解替代物。