公开(公告)号：US20180312782A1

公开(公告)日：2018-11-01

申请号：US15770241

申请日：2016-11-02

Applicant: BASF SE

Inventor： Arend Jouke KINGMA ,  Diana NEUMANN ,  Henning URCH

IPC: C11D3/33 ,  C11D3/00 ,  C11D3/04 ,  C11D3/16 ,  C11D3/20 ,  C11D3/34 ,  C11D3/36

CPC classification number: C11D3/33 ,  C11D1/345 ,  C11D3/0073 ,  C11D3/042 ,  C11D3/164 ,  C11D3/2075 ,  C11D3/3409 ,  C11D3/362 ,  C11D3/3723 ,  C11D7/08 ,  C11D7/261 ,  C11D7/263 ,  C11D7/265 ,  C11D7/3245 ,  C11D7/34 ,  C11D7/36

Abstract: Aqueous formulations comprising (A) at least one organic complexing agent selected from (A1) alkali metal salts of aminopolycarboxylic acids and (A2) polymers bearing at least two —CH2—N(CH2COOH)-units per molecule, partially or fully neutralized with alkali, (B) at least one salt of at least one of the following acids: nitric acid, sulphuric acid, sulphamic acid, methanesulfonic acid, C1-C2-carboxylic acids, C2-C4-hydroxymonocarboxylic acids, C2-C7-dicarboxylic acids, unsubstituted or substituted with hydroxyl, and C4-C6-tricarboxylic acids, each unsubstituted or substituted with hydroxyl, (C) at least one compound selected from (C1) phosphoric acid C2-C10-monoalkyl esters, (C2) a C3-C10-alkynol, optionally alkoxylated with one to 10 alkoxide groups per hydroxyl group, and (C3) a C4-C10-alkynediol, optionally alkoxylated with one to 10 alkoxide groups per hydroxyl group, said aqueous formulations having pH values in the range of from 7.5 to 10.