Benzophenone UV Absorber Characterization UV-531 is an ultraviolet light absorber (UVA) of the benzophenone class, imparting good light stability when used in combination with a HALS or UV range. It shows good compatibility with polyolefins and plasticized PVC

Chemical Name: Methanone,2-hydroxy-4-(octyloxy)-phenyl-
CAS Number: 1843-05-6
Structure

Molecular weight : 326.4g /mol

Applications The main application of UV-531 is in combination with a HALS for the light stabilization of low density and linear low density polyethylene as well as ethylene-vinyl acetate copolymers for agricultural films. It can be used as well as a UV barrier to protect combination with HALS UV-531 can be used in high density polyethylene molded articles e.g. in crates.

UV-531 also protects a number of other polymers against degradation caused by light exposure such us plasticized PVC and rubbers. UV-531 can be used in combination with antioxidants, phosphates and light stabilizers

Features/Benefits UV-531 is particularly suitable for thick films, typically >100um and

Guidelines for use Thick sections: UV Stabilization of PE

Films : UV Stabilization of LLDPE, LDPE and EVA 0.15-0.7%