UV absorber RC-UV328
DESCRIPTION
UV absorber RC-UV328 is a benzotriazole type ultraviolet light absorber (UVA), imparting good light stability for plastics and other organic polymers. It offering high solubility and desirable balance of properties: used for stabilizing coatings, auto motive coatings, styrenics, polyolefins acrylic, and other substrates requiring UV-328 protection, suitable for food contact applications.
CHEMICAL NAME: 2-(3’,5’-Di-tert-amyl-2’-hydroxy phenyl) benzotriazole
CHEMICAL FORMULA C22H29N30
CHEMICAL STRUCTURE
CAS NO.： 25973-55-1
MOLECULAR WEIGHT: 351.5
PRODUCT FORM: White to slight yellow powder
APPLICTION
• It can use in stabilizing coatings, auto motive coatings, styrenics, polyolefins acrylic.
• It is suitable for food contact applications.
TYPICAL PROPERTIES
|
Test |
Specification |
|
Purity (% ) by HPLC |
Max 99.0 |
|
Melting Range (°C) |
79.0-87.0 |
|
Flashpoint (°C) |
229 |
|
Specific Gravity(g/cm3，20 °C ) : |
1.17 |
|
Volatile (%) |
Max 0.50 |
|
Ash (%) |
Max 0.10 |
|
Transmittance (%) |
|
|
460nm |
Min 97.00 |
|
500nm |
Min 97.00 |
NOTE
The above information is provided as guidelines only. It is important that the customer evaluate any product in their own resin system to determine suitability.