Chemical name: 2,2’-(1,4-phenylene)bis-4H-3,1-benzoxazin-4-one

CAS No.：18600-59-4                              

Molecular formular：C22H12N2O4

Molecular weight：368.34                                

Molecular structure

Specification                                                                    

Appearance: White to off-white crystalline powder

Melting point，℃：≥310

Assay, %: ≥98

Ash, %: ≤0.1

Loss on Drying: ≤0.5

Application                                                                       

UV ABSORBER HOSORB-UV3638 is a highly efficient benzoxazinone type UV absorber, which is distinguished by its superior low volatility and strong & broad range of UV light absorption together with no color contribution & excellent stabilization for polymers. It is designed to meet the demanding high temperature requirements for processing engineering plastics such as Nylon, PC,PET,PBT and PPO. It is also highly effective in other polymers such as polyamides, polyacetals, polyolefins fibers, styrenics, elastomers where long term UV light stability is required.