Composition containing photoreactive, low-molecular polyalkyl piperidines absorbing UV radiation, solid master batch in which the composition is comprised, stabilization process of natural or synthetic polymeric or pre-polymeric substrates and use thereof

摘要

The present invention relates to novel composition of photoreactive, UV-light absorbing, low molecular weight polyalkyl piperidines and non-photoreactive low molecular weight sterically hindered polyalkyl piperidines as well as to master batch composition comprising the novel composition. The invention further relates to a process for stabilizing natural or synthetic polymeric or pre-polymeric substrates as well as the use of stabilized organic materials for preparing various products. According to the present invention enhancement of light stability in organic materials is achieved.