- 专利标题： Mixtures of chelating agents, and process for making such mixtures
-
申请号： US16086931申请日： 2017-03-29
-
公开(公告)号： US10676700B2公开(公告)日： 2020-06-09
- 发明人: Thomas Schmidt , Marta Reinoso Garcia , Carsten Sueling , Verena Mormul
- 申请人： BASF SE
- 申请人地址： DE Ludwigshafen am Rhein
- 专利权人： BASF SE
- 当前专利权人： BASF SE
- 当前专利权人地址： DE Ludwigshafen am Rhein
- 代理机构： Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权： com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@6213a913 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@50deda8e
- 国际申请： PCT/EP2017/057395 WO 20170329
- 国际公布： WO2017/174413 WO 20171012
- 主分类号： C11D1/00
- IPC分类号： C11D1/00 ; C11D11/00 ; C11D3/33 ; C07C227/26 ; C11D17/00
摘要：
The present invention is directed towards mixtures comprising (A) 90 to 99.999% by weight of racemic methyl glycine diacetic acid (MGDA) or of MGDA with predominantly the L-isomer in an enantiomeric excess of up to 9.5% or their respective mono-, di- or trialkali metal or mono-, di- or triammonium salts, and (B) in total 0.001 to 10% by weight of the diacetic acid derivative of aspartate as free acid or as mono-, di-, tri- or tetraalkali metal salt or as mono-, di-, tri- or tetraammonium salt, percentages referring to the sum from (A) and (B).
公开/授权文献
信息查询
