New naphthalene-1,8-dicarboxylic monoimides for use as sole light stabilizer to protect organic material, e.g. plastics, polymer dispersions, paints and photographic emulsions, from damaging effects of light

摘要

Naphthalene-1,8-dicarboxylic monoimides for protecting organic material from the damaging effects of light is new. Naphthalene-1,8-dicarboxylic monoimides of formula (I) is new. [Image] R 1>H, alkyl, alkenyl, cycloalkyl, cycloalkenyl, heterocycloalkyl, aryl, or heteroaryl;and R 2>radical containing pi electron system(s) containing a carbon atom and further atom(s) from C, O, and N with the proviso that the radical contains atom(s) other than carbon. Independent claims are also included for: (a) a polymer composition comprising naphthalene-1,8-dicarboxylic monoimide(s) in an amount that provides protection from the damaging effects of light, and organic material(s); and (b) a process for protecting organic material from the damaging effects of light comprising adding to the material naphthalene-1,8-dicarboxylic monoimide.