Siliconic U.V. stabilizers containing reactive groups

摘要

Polymeric stabilizers having a polysiloxane structure contain reactive groups which can be linked to the polymeric structure to be stabilized as well as sterically hindered piperidyl groups. These polymeric stabilizers are particularly suitable for the stabilization of organic polymers against U.V. radiation and heat when the stabilizer must not be extracted by solvents, fats or soaps.