Uvinul 4050 H from BASF is the first light stabilizer in its class to obtain FDA approval for use in plastics


According to the company, BASF's light stabilizer Uvinul® 4050 H is the first monomeric HALS worldwide to obtain a food Contact Notification (FCN) for the use in plastics with food-contact. The FCN is granted by the United States Food and Drug Administration (FDA). Uvinul 4050 H may be used in polypropylene, polystyrene, styrene copolymers and acrylonitrile copolymers (including ABS) that come into contact with foodstuffs.

Uvinul 4050 H is approved for use at a concentration of up to 0.5% in polystyrene, styrene copolymers and acrylonitrile copolymers. It is also approved for use at a concentration of up to 0.25% in polypropylene in contact with all types of foodstuffs except those with an alcohol content of more than 8%. The requirements and definitions for individual plastics in FDA Regulations 21 CFR 177.1640 (polystyrene), 21 CFR 177.1810 (styrene copolymers), 21 CFR 181.32 (acrylonitrile copolymers) and 21 CFR 177.1520 (polypropylene) must be observed when Uvinul 4050 H is employed as a light stabilizer for food-contact applications.

Uvinul® 4050 H is a light stabilizer that belongs to the group of low-molecular-mass sterically hindered amines (monomeric HALS). It scavenges the free radicals that are formed when plastics are degraded by exposure to light and renders them harmless. This helps to prevent further degradation of the polymer, and it retains its initial visual appearance and mechanical properties much longer.

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