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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/cm320 °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.