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Date/Time:  5/16/21 12:54 GMT

UV ABSORBER UV 3638 CAS NO.18600-59-4

Chemical name: 2,2’-(1,4-phenylene)bis-4H-3,1-benzoxazin-4-one< , br>CAS No.:18600-59-4
Molecular formular:C22H12N2O4
Molecular weight:368.34
Molecular structure

Appearance: White to off-white crystalline powder
Melting point,℃:≥310
Assay, %: ≥98
Ash, %: ≤0.1
Loss on Drying: ≤0.5

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.
info at
UV ABSORBER UV 3638    CAS NO.18600-59-4
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