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.

公开(公告)号：US20180355291A1

公开(公告)日：2018-12-13

申请号：US16060049

申请日：2016-11-30

Applicant: BASF SE

Inventor： Marta REINOSO GARCIA ,  Nathalie Sophie LETZELTER ,  Frank HUELSKOETTER ,  Rohan Govind MURKUNDE ,  Kevin George GOODAL

IPC: C11D7/32 ,  C11D7/26

CPC classification number: C11D7/3245 ,  C11D3/33 ,  C11D3/3765 ,  C11D7/265

Abstract: The present invention is directed towards an aqueous solution comprising (i) in the range of from 45 percent by weight to 60 percent by weight based on the total weight of the solution of at least one complexing agent (A), selected from the group consisting of methylglycine diacetic acid and its respective mono-, di-, or trialkali metal and mono-, di-or triammonium salts, and glutamic acid diacetic acid, and its respective mono-, di-, tri-or tetraalkali metal and mono-, di-, tri-or tetraammonium salts, (ii) in the range of from 1 percent by weight to 30 percent by weight based on the weight of component (A) of at least one homo-or copolymer of (meth)acrylic acid (B) that is either partially or fully neutralized, and (iii) water, said aqueous solution being stable for at least one week.