PRODUCTION OF CURABLE COMPOSITION AND PHOTOSETTING COMPOSITION PRODUCED THEREBY

摘要

PURPOSE:To obtain the subject composition resistant to gelation and giving a cured product removable with an alkaline aqueous solution, by reacting a polyepoxide compound with a specific amount of a specific compound which is liquid at normal temperature and has (meth)acryloyl group as well as carboxyl group. CONSTITUTION:The objective composition is produced by reacting (A) a compound having a boiling point of >=200 deg.C under normal pressure, exhibiting liquid state at normal temperature and containing (meth)acryloyl group carboxyl group with (B) a polyepoxide compound (e.g., bisphenol A) and reacting the reaction product with (C) an acid anhydride (e.g., phthalic anhydride). The ratio of the carboxyl group of the component A to the epoxy group of the component B is >=2. The above reactions are preferably carried out at 80-130 deg.C. The component A is, e.g., a reaction product of an acid anhydride (e.g., phthalic anhydride) with a hydroxyl-containing acrylate such as hydroxyethyl (meth) acrylate.