Chemical name:2-[2'-hydroxy-3',5'-bis( . -dimethyl benzyl)-phenyl]benzotriazole
Introduction: UV -234 is a high molecular weight and low volatile ultraviolet light absorber (UVA) of the hydroxyphenyl benzotriazole class, imparting outstanding light stability to a variety of polymers during its use.
Details: Molecular formula: C22H29N3O
CAS No: 70321-86-7
Structure:
Properties:
Appearance: Slightly yellow powder
Melting Point: 137-141
Transmittance (%) : 460nm:≥90.0 550nm:≥95.0
Applications
can be used in PC, coating and PA fiber, has good resistance to heat than UV-327, can be used together with 292 to get better effect.
Packing：UV-234 is available in powder form in 25kg carton, net weight, with an inner PE liner or 25kg fiber drum
