公开(公告)号：US20180002643A1

公开(公告)日：2018-01-04

申请号：US15529820

申请日：2015-11-20

Applicant: BASF SE ,  Procter & Gamble Company

Inventor： Marta REINOSO GARCIA ,  Markus Christian BIEL ,  Dieter BOECKH ,  Nathalie Sophie LETZELTER ,  Rohan Govind MURKUNDE ,  Frank HUELSKOETTER ,  Kevin George GOODAL

IPC: C11D7/32 ,  C11D7/26

CPC classification number: C11D7/3245 ,  C11D3/33 ,  C11D3/3723 ,  C11D3/3773 ,  C11D7/265 ,  C11D7/32

Abstract: Aqueous formulation with a content of (A) and (B) in the range of 40% to 60%, containing(A) a complexing agent selected from methylglycine diacetic acid (MGDA) that is at least partially neutralized with alkali metal, and at least one complexing agent other than MGDA selected from(B) glutamic acid diacetic acid (GLDA) that is at least partially neutralized with alkali metal, and, optionally,(C) a polymer being selected from polyamines, the N atoms being partially or fully substituted with CH2COOH groups, partially or fully neutralized with alkali metal cations, and, optionally,(D) at least one alkali metal salt of an organic acid, said acid being selected from mono- and dicarboxylic acids,wherein the weight ratio of complexing agent (A) to complexing agent (B) is in the range of from 10:1 to 1:10.