US 12,435,425 B2
Preparations of noble metal complexes
Robert Sievi, Hanau (DE); Michael Gock, Hanau (DE); and Richard Walter, Hanau (DE)
Assigned to HERAEUS DEUTSCHLAND GMBH & CO. KG, Hanau (DE)
Appl. No. 18/004,581
Filed by Heraeus Deutschland GmbH & Co. KG, Hanau (DE)
PCT Filed Apr. 26, 2021, PCT No. PCT/EP2021/060795
§ 371(c)(1), (2) Date Jan. 6, 2023,
PCT Pub. No. WO2022/012794, PCT Pub. Date Jan. 20, 2022.
Claims priority of application No. 20185479 (EP), filed on Jul. 13, 2020.
Prior Publication US 2023/0243038 A1, Aug. 3, 2023
Int. Cl. C23C 18/12 (2006.01); C23C 18/08 (2006.01)
CPC C23C 18/08 (2013.01) 22 Claims
 
1. A preparation consisting of:
(A) 30 to 90 wt. % of at least one organic solvent, the at least one organic solvent having a boiling point ranging from 50 to 200° C.,
(B) 10 to 70 wt. % of at least one noble metal complex comprising diolefin and C6-C18 monocarboxylate ligands selected from the group consisting of noble metal complexes of the type [LPd[O(CO)R1]X]n, [LRh[O(CO)R1]]m and [LIr[O(CO)R1]]m, wherein L represents a compound acting as diolefin ligand, wherein X is selected among bromide, chloride, iodide, and —O(CO)R2, wherein —O(CO)R1 and —O(CO)R2 represent identical or different non-aromatic monocarboxylic acid residues with each of R1 and R2 being a C5-C17 hydrocarbon residue, and wherein n is an integral number ≥1, and m is an integral number ≥2, and
(C) 0 to 10 wt. % of at least one additive selected from the group consisting of wetting additives, rheology additives, defoamers, deaerators, additives for influencing the surface tension, and odorants,
wherein the preparation is in the form of an organic solution.