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US 11,840,804 B2Granted
Pyridine and pyrimidine substituted triazine UV absorbers
AssigneeHuntsman Textile Effects (Switzerland) GmbH
InventorsHosuk Ryu, Hans-Jorg Peter, Gilles Sperissen, Martin Weber
Life of this patent
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Abstract
A compound of formula wherein V, W, X and Y represent N or CH, at least one of V, W, X and Y being N and at least two of V, W, X and Y being CH; and R1, R2 and R3 are each independently of the other hydrogen, C1-C8alkyl, C1-C8alkoxy, nitro, cyano, trifluoromethyl, halogen or hydroxy; with the proviso that the compounds of formulae are excluded, provides good lightfastness properties to textile fibre materials, in particular PES fibre materials.
Claims8
A compound of formula
- wherein X and W denote N and V and Y are CH;
- and
- R1, R2 and R3 are each independently of the other hydrogen, C1-C8 alkyl, C1-C8 alkoxy, nitro, cyano, trifluoromethyl, halogen or hydroxy;
- with the proviso that the compounds of formulae
- are excluded.
2 more elements
Dependencies are inferred from the claim text.