UV-329 is a benzotriazole
type UV absorber. Characterized by its high solubility and superior
properties makes UV-329 particularly suitable for light stabilizing in
coatings, propylene, polyurethane and polyvinyl chloride.
UV-329 is
also effective to the light stabilization of unsaturated polyester,
polyacrylate and polycarbonate.
Physical
properties
Appearance: white powder
Melting Point: 101-106 ?
Assay: 99% min.(HPLC)
Transmittance: 460nm: 97% min
500nm: 98% min
Ash content: 0.1% man
Advantage
• Readily soluble in a wide range of organic
solvents.
• Excellent compatibility
with variety of the polymers.
• Low volatility during high processing
temperature.
• Good extraction resistance.
• Low vapor pressure, very little or no loss
during processing.
Applications
• Coatings: 1.0-3.0wt% based on solids.
• Polyvinyl chloride: 0.2-0.5wt% for rigid
PVC based on solids.
• Polyurethane: 0.3-1.0wt%
for PS based on solids.
• Polyacrylate: 0.15-0.3wt% for PS based on
solids.
• Polycarbonate: 0.15-0.3wt% for PS based on
solids.
• Unsturated Polyester: 0.2-0.4wt% for PS
based on solids.
Toxicity
& Safety
UV-329 can be safely handled without irritation caused to the skin.
Package
In 25 kg carton drum with inner plastic
bag.
Storage
In a closed system and dry , dark place
without any light exposure.
