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Benzophenones Based Ultraviolet Absorbers

PowerSorb™ 3638

2,2'-(1,4-Phenylene)bis(4H-3,1-benzoxazin-4-one).
Synonym: 2,2'-Benzene-1,4-diylbis(4H-3,1-benzoxazin-4-one)
Chemical Structure
Introduction / Features
PowerSorb™ 3638 is a highly efficient and non-staining UV absorber.
Physical Properties
Chemical Name: 2,2'-(1,4-Phenylene)bis(4H-3,1-benzoxazin-4-one)
CAS No.: 18600-59-4
EINECS No.: 418-280-1
Formula: C22H12N2O4
Molecular Weight: 368
Bulk Density: 0.52@20°C
Melting Point(°C): Min.310
Volatile Loss(%): Max 0.5
Color(YI,2g sample): 4 Max
Color(APHA): 30 Max
IR Spectrum: Conform
Odor: None
Color of Solution 460nm (%): Min.98.0
Color of Solution 500nm (%): Min.99.0
Ash(%): Max. 0.10
Appearance: Off-white to Pale Yellow Fine Powder
Min. Purity: 98%

Solubility (20°C) % w/w
Ethyl acetate: <0.1
Methyl ethyl ketone: <1
Ethanol: <1
DMF: 2
Water: <0.01

Applications
PowerSorb™ 3638 is made to dissolve quickly in PET resin and to give a transparent appearance even with high dosage.
PowerSorb™ 3638 is ideal for film/sheet/plate applications such as solar cell, window film, etc.
PowerSorb™ 3638 is registered on FDA and is approved for food contact applications such as PET bottles and food wrap films.
Packings
PowerSorb™ 3638 is supplied in 25 kg carton box with inner anti-static PE bag.
Technical Library
Download Technical Data Sheet Safety Data Sheet

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