 |
 |
|
|
|
| UV absorber-327 |
 |
| 2'-(2'-Hydroxy-3',5'-di-tert-butylophenyl)-5-chlorobenzotriazole |
 |
| 3864-99-1 |
 |
UV 327 is a highly effective light stabilizer for variety of plastics and other organic substrates. Due to its red shifted UV absorption, it is particularly suited for use in the stabilization of polymers that are especially sensitive to long-wavelength UV radiation (e.g. polyurethanes, polyphenylene sulfide) and in certain applications where very low transmission of long-wavelength UV radiation is required (e.g. optical lenses). Its use is recommended in a variety of polymers and organic substrates, including a crylic polymers, polycarbonate, polyesters, styrene homo-and copolymers, unsaturated polyesters, polyvinylchloride, polyolefins, polyvinylbutyral, elastomers and adhesives.
|
 |
Properties: light yellow powder, melting 151oC, strongly absorb ultra-violet ray of 300-400nm, stable under normal temperature. Has good solubility with polymers.
Specifications:
Appearance Light yellow powder
Melting point,oC 151min
Ash content,% 0.05max
Volatile,% 0.5max
Transmissivity 460nm 97%min, 500nm 98%min
Purity,% 99
|
|
|
|
|
|
