PHOTOACTIVE COMPOSITIONS AND PREPARATION THEREOF

摘要

The present invention relates to photoactive compositions comprising about 20 to about 80 mol % of trihydroxybenzophenone having at least 70 % of the hydroxyl groups converted into 2,1,5-diazonaphthoquinone sulfonic acid esters. The compositions also comprise about 80 to about 20 mol % of a mixture comprising a backbone molecule, and/or the backbone molecule having hydroxyl groups partially and/or completely converted into 2,1,5-diazonaphthoquinone sulfonic acid esters. Processes for preparing such compositions are also disclosed.