31-03-2022 дата публикации
Номер: US20220098413A1
Принадлежит:
The present invention relates to naphthalocyanine and phthalocyanine chromophores of formula (I), their use as almost colourless IR absorbers, for optical filter applications, especially for plasma display panels, or for laser welding of plastics. The compounds may be used in compositions for inks, paints and plastics, especially in a wide variety of printing systems and are particularly well-suited for security applications. 114.-. (canceled)17. The compound according to claim 15 , wherein in the compound of formula (Ib) Rand Rare H.18. The compound according to claim 15 , wherein in the compound of formula (Ia) R claim 15 , R claim 15 , Rand Rare H.20. Use of the compound according to as IR absorber for optical filter applications claim 15 , for plasma display panels claim 15 , for laser marking of paper or plastics claim 15 , for laser welding of plastics claim 15 , for 3D printing claim 15 , for the curing of surface-coatings using IR radiators claim 15 , for the drying and curing of print claim 15 , for the fixing of toners on paper or plastics claim 15 , for heat shielding applications claim 15 , for invisible and/or IR readable bar codes claim 15 , or as IR absorber in security printing.21. A printing ink formulation claim 15 , comprising the compound according to .22. A printing ink formulation claim 15 , comprising{'claim-ref': {'@idref': 'CLM-00015', '#text': 'claim 15'}, '#text': 'a) the compound according ,'}b) a polymeric binder, andc) a solvent.23. The printing ink formulation claim 15 , comprising{'claim-ref': {'@idref': 'CLM-00015', '#text': 'claim 15'}, '#text': 'a) 0.0001 to 25% by weight of the compound according to ,'}b) 5 to 74% by weight of at least one polymeric binder,c) 1 to 94.9999% by weight of at least one solvent,d) 0 to 25% by weight of at least one colorant, ande) 0 to 25% by weight of at least one further additive,wherein the sum of components a) to e) adds up to 100%.24. A process for the manufacture of a security document comprising ...
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