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US 2026/0209530 A1Published application
Vanadium complexes with nitrogen and oxygen donor atoms
AssigneeBorchers GmbH
InventorsNeil John Simpson, Martin Klussmann, Steffen Brand, Percia Arockiam
Life of this patent
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Abstract
The invention pertains generally to metal complexes of vanadium, iron, manganese or copper with ligands which contain at least one nitrogen and at least one oxygen donor atom, e.g., non-symmetrical amino acids and Schiff-base ligands.
Claims20
A process for improving at least one physical property of an oxidatively curable alkyd resin coating selected from the group consisting of improved resin hardness, reduced resin yellowing, reduced resin blistering, and reduced resin dry time, comprising the following steps in any order:
- combining a metal source of vanadium, iron, manganese or copper with at least one non-symmetrical ligand with the provisos that:
- (a) when the non-symmetrical ligand is of the type LO,N or LO,N,O, the non-symmetrical ligand comprises at least one of a terminal carboxylic acid group or a phenolic hydroxy group and at least one of a primary amine or Schiff base or pyridine nitrogen group;
- and wherein
- (b) when the non-symmetrical ligand is of the type LO,N,O comprising at least one terminal carboxylic acid, the non-symmetrical ligand comprises at least one phenolic hydroxy functional group in addition to the at least one terminal carboxylic acid group.
1 more element
An oxidatively curable alkyd resin composition comprising:
- a metal source of vanadium, iron, manganese or copper;
- and
- at least one non-symmetrical ligand,
- wherein:
- (a) when the non-symmetrical ligand is of the type LO,N or LO,N,O, the non-symmetrical ligand comprises at least one of a terminal carboxylic acid group or a phenolic hydroxy group and at least one of a primary amine or Schiff base or pyridine nitrogen group;
- and
- (b) when the non-symmetrical ligand is of the type LO,N,O comprising at least one terminal carboxylic acid, the non-symmetrical ligand comprises at least one phenolic hydroxy functional group in addition to the at least one terminal carboxylic acid group.
4 more elements
Dependencies are inferred from the claim text.