UV-328

CAS NO : 25973-55-1

Physical Properties

Molecular Weight : 351.5

Appearance : slight yellow powder

Melting Range : 80-88 °C

Flashpoint : 229 °C

Specific Gravity(20 °C ) : 1.17g/cm3

Transmissirity:

            460nm≥ 97 %

            500nm≥ 98%

Applications 1. Unsaturated Polyester : 0.2-0.5wt% based on polymer weight 2.PVC: Rigid PVC : 0.2-0.5wt% based on polymer weight Plasticized PVC : 0.1-0.3wt% based on polymer weight 3.Polyurethane : 0.2-1.0wt% based on polymer weight 4.Polyamide : 0.2-0.5wt% based on polymer weight Packing:  25kg   paper drum or carton

UV-329
CAS NO : 3147-75-9
Molecular Weight : 323

 

Appearance : white powder

Melting Range : 103-105 °C

Flashpoint : 150 °C

Specific Gravity(20 °C ) : 1.18g/cm3

Transmissirity:

            440nm≥ 97 %

            500nm≥ 98%

 

UV-234

CAS NO.:70821-86-7

Performance & Application ：
    UV-234 is a kind of yellowish powder, melting point is 139.5-141 ℃ , it is a fine light stabilizer, suitable for PP, TPE , hard PVC, POM, PA, PC, PBT/PET, PMMA,etc.

Technical Indicators ：
Appearance: light yellow powder
Melting Point: ≥ 139.5-141 ℃
Volatile Matter: ≤ 0.5%
Ash Content: ≤ 0.05%
Purity: ≥ 99%
Transmissirity:

            460nm≥ 97 %

            500nm≥ 98%