UV Absorber UV-P

Chemical Name: 2-(2'-Hydroxy-5'-methylphenyl)-benzotriazole
CAS No. : 2440-22-4
Molecular Formula: C13H11N3O
Molecular Weight: 225.25

Solubility: UV-P is particularly effective in styrenic polymers, PVC, unsaturated polyesters, polyurethanes, acrylic polymers and polycarbonates.

Attribute: white to yellowish crystal powder

Property Specification
Appearance white to yellowish crystal powder
Melting Point 129 -132 Deg. C
Assay 99% min (HPLC)
Transmittance(440nm) 97% min
(500nm) 98% min
Ash content 0.3% max

Applications:
UV-P is a benzotriazole type UV absorber. Characterized by its strong, broad range UV absorption property, UV-P brings an excellent photostability to polymers against UV light exposure in many ways i.e. retarding color yellowing , preventing embrittlement, maintaining of mechanical properties etc.
* Styrenic polymers: 0.2-0.5wt% for PS based on polymer wt.
0.3-0.5wt% for ABS based on polymer wt.
0.5-2.0wt% for HIPS based on polymer wt.
* Polyvinyl chloride: 0.2-0.5wt% for PVC based on polymer wt.
* Polyurethane: 0.3-1.0wt% for PS based on polymer wt.
* Polyacrylate: 0.15-0.3wt% for PS based on polymer wt.
* Polycarbonate: 0.15-0.3wt% for PS based on polymer wt.
* Unsturated Polyester: 0.2-0.4wt% for PS based on polymer wt.

ADVANTAGE
* Very high photostability for its strong ability to absorb light especially in UV region(270-340nm)
* Odorless, does not bring smells to the polymers.
* Very stable to heat, and can be used in plastics which require high processing temperature.
* Low vapor pressure, very little or no loss during processing.

TOXICITY & SAFETY
UV-P can be safely handled without irritation caused to the skin.

Stability and Storage:
In a closed system and dry, dark place without any light exposure.

Package: In 25 kg carton drum with inner plastic bag

Optional Information
- HS Code : 2933 Heterocyclic Compounds With Nitrogen, Nucleic Acids, Their Salts