https://www.avient.com/news/polyone-highlight-advanced-specialty-solutions-chinaplas-2014
Dual Light Barrier for Packaging: OnCap™ Light Shield additive effectively absorbs both ultraviolet (UV) and visible light from clear packages to protect light-sensitive substances, such as food and pharmaceuticals, from degradation.
This material portfolio also delivers excellent flame, chemical, and UV light resistance, making it a cost-effective replacement for various engineered polymers and metal in applications such as laundry consoles, circuit board housings, medical equipment, and LED lighting.