Photocationic initiator combinations

   
   

New photocationic photoinitiator combinations are described that consist of 2,4,6-triarylpyrylium salts with non-nucleophilic anions and electron donors, that are able rapidly to crosslink unpigmented as well as pigmented mixtures based on cycloaliphatic epoxides to form colourless layers such as lacquers and printing inks without generating interfering and toxic emissions.

Le nuove combinazioni photocationic di photoinitiator sono descritte che consistono dei sali di 2,4,6-triarylpyrylium con gli anioni ed i donatori non-nucleofili dell'elettrone, quello possono velocemente unire con legami atomici incrociati unpigmented come pure le miscele pigmentate basate sugli epossidi cicloalifatici per formare gli strati incolori quali le lacche e gli inchiostri da stampa senza di interferire di generazione ed emissioni tossiche.

 
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