|
Chemical name
|
2-(2'-Hydroxy
-3' ,5'-ditert-butylphenyl)-5-chloro benzotriazole
|
|
CAS NO.
|
3864-99-1
|
|
Introduction
|
UV-327 is a benzotriazole
type UV absorber. It has a high and absorption in the wavelength of 300-400nm.
UV-327 is
also effective in polyethylene, unsaturated polyester, polypropylene and
polycarbonate.
|
|
Physical properties
|
Molecular Weight: 357.5
Appearance: slightly yellowish powder
Melting Point: 154 -157 ?
Transmittance: 460nm: 93% min
500nm: 96% min
Ash Content: 0.3% max
|
|
Advantage
|
• Odorless, does not bring smells to the
polymers.
• Excellent stability to heat.
• Low volatility during high processing
temperature.
• Good extraction resistance.
|
|
Applications
|
• Polyethylene: 0.2-0.4wt% based on solids.
• Polypropylene: 0.3-0.5wt% for rigid PVC
based on solids.
• Styrenic Polymers: 0.2-0.5wt% for PS based
on solids.
0.5-2.0wt% for ABS based on solids.
• Unsturated Polyester: 0.2-0.4wt% for PS
based on solids.
|
|
Toxicity & Safety
|
UV-327
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.
|
