公开(公告)号：US20240060201A1

公开(公告)日：2024-02-22

申请号：US17753653

申请日：2020-09-08

Applicant: BASF SE

Inventor： Marco ARNOLD ,  Alexander FLUEGEL ,  Elisabeth KUTTNER ,  Doris KREMZOW-GRAW ,  Nadine ENGELHARDT ,  Johannes KASCHEL

IPC: C25D3/32 ,  C25D3/64 ,  C07C321/20 ,  C07C335/18 ,  C07D213/32 ,  C07D277/26 ,  C07D233/60

CPC classification number: C25D3/32 ,  C25D3/64 ,  C07C321/20 ,  C07C335/18 ,  C07D213/32 ,  C07D277/26 ,  C07D233/60

Abstract: An aqueous composition including (a) metal ions including tin ions and silver ions and (b) at least one complexing agent of formula C11


RC12-XC11-RC11   (C11)

and their salts,



where
XC11 is selected from

(a) a divalent 5 or 6 membered aromatic N-heterocyclic group;
(b) a divalent 6 membered aromatic carbocyclic group; and
(c) a divalent 5 or 6 membered aliphatic N-heterocyclic group including one N atom and optionally a second heteroatom selected from N and O;


 all of which may be unsubstituted or substituted by one or more OH or one or more RC14;
RC11 is selected from










 ; and
RC12 is selected from RC11, XC11-RC11, H, OH, NRC142, C1 to C10 alkyl, and C1 to C10 alkoxy