Procedure to protect, against the action of ultraviolet irradiation, organic materials that are damaged by ultraviolet irradiation. (Machine-translation by Google Translate, not legally binding)

摘要

Process for protecting, against the action of ultraviolet irradiation, organic materials that are damaged by ultraviolet irradiation, characterized in that asymmetric diarylamides of oxalic acid, which are free of hydroxyl groups in position ortho to the bonds of the aryl radicals in the atoms of Nitrogen of the amide, are distributed homogeneously in the organic materials to be protected, cover these materials superficially, or the materials to be protected are covered with a filter layer containing the aforementioned compounds. (Machine-translation by Google Translate, not legally binding)