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AssigneesBASF SE, The Procter & Gamble Company
InventorsMarta REINOSO GARCIA, Markus Christian BIEL, Dieter BOECKH, Nathalie Sophie LETZELTER, Rohan Govind MURKUNDE, Frank HUELSKOETTER, Kevin George GOODAL
Estimating the term…
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.
-15. (canceled)
An aqueous formulation with a content of (A) and (B) in the range of 40% to 60%, containing
The process for making an aqueous solution according to clam 16, comprising the steps of combining an aqueous solution of complexing agent (A) with an aqueous solution of complexing agent (B) and an aqueous solution of salt (D).
Dependencies are inferred from the claim text.