Process to modify non glycidyl functional impurities of acid glycidyl esters to be used in further radical polymerisation

摘要

The present invention relates to a process to modify the non-glycidyl functional products occurring in industrially produced glycidyl esters, which are currently used in the synthesis of radical polymerisable acrylic or methacrylic acid derivatives, to be further reacted too resins for coating applications. The process to modify non glycidyl functional impurities in acid glycidyl esters of branched alkane carboxylic acids, by reacting the fraction of non-glycidyl functional products with ethylenically unsaturated anhydride. <??>Another aspect of the present invention is formed by the cured coating films derived from the hereinbefore defined coating compositions and applied on a shaped substrate, and more in particular on automotives.