Description
Linsorb UV 3638
Introduction
Linsorb UV 3638 offers very strong and broad UV absorption with no color contribution. Possesses very good stabilization for polyesters(PET) and polycarbonates(PC). 3638 is based on a benzoxaxinone structure, which delivers a short-term heat stability up to 350 °C and a long-term heat stability up to 160 °C. Replace Cytec Cyasorb 3638.
Chemical Name:
2,2′-(1,4-Phenylene)bis[4H-3,1-benzoxazin-4-one]
Specification:
CAS No. : 18600-59-4
Odor: None
Bulk Density: 0.52 @20 °C
Extinction coefficient (ε): ca. 13,000 at 370 nm
Appearance: Off-white to pale yellow fine powder
Melting point: 330 °C
IR spectrum : Conform
Color (YI, 2 g sample) : 4 max
Color (APHA) : 30 max.
Volatiles: 0.2% max
