CHROMAN DERIVATIVES, THEIR PREPARATION AND THEIR USE AS STABILIZERS OF ORGANIC MATERIAL AGAINST LIGHT, OXYGEN AND HEAT

摘要

Disclosed are chroman derivatives of general formula (I), wherein R<1> is an unsubstituted or substituted C6-C20 aryl or aryloxy radical, a C1-C20 alkoxy group, -CN, -COOR<3>, -COOH or -CONH2; R<2> is a C-organic radical with 8 - 30 C atoms, and R<3> is an alkyl radical with 1-20 C atoms in which the carbon chain can be interrupted in the ether function by oxygen atoms. Diclosed also are a method for preparing the claimed compounds (I), the use of these compounds as stabilizers of organic material, specifically plastics, against the effects of light, oxygen and heat as well as stabilizer mixtures and plastics and other organic materials containing the claimed compounds (I).