2,2'-Benzene-1,4-diylbis(4H-3,1-benzoxazin-4-one) CAS NO.18600-59-4

Chemsorb 3638 is a highly efficient benzoxazinone type UV absorber, which is distinguished by its superiorly low volatility, and its strong a& broad range of UV light absorption togethe

Chemsorb 3638 is a highly efficient benzoxazinone type UV absorber, which is distinguished by its superiorly low volatility, and its strong a& broad range of UV light absorption together with no color contribution & excellent stabilization for polymers. While Eusorb UV-3638 is designed to meet the demanding high temperature requirements for processing engineering plastics such as Nylon, Polycarbonate, PET, PBT and PPO. It is also highly effective in other polymers such as polyamides, polyacetals, polyolefins fibers, styrenics, elastomers where long term permanent UV light stability is required.