Chemical name : Bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate

Introduction : UV-770 is a hindered amine light stabilizer (HALS), is used for polypropylene (tapes, films, thick items), polyethlene (thin and thick items) styrenics (acrylonitrile butadienestyrene, polystyrene, high impact polysyrene), polyurethane, polyacetaL, polyamide.
Empirical Formula : C28H52O4N2
CAS NO : 52829-07-9
Physical Properties
Molecular Weight : 481
Appearance : white crystals
Melting Range : 81-85 °C
Flashpoint : >150 °C
Specific Gravity(20 °C ) : 1.05 g/cm3
Transmissirity:
425nm≥ 98%
500nm≥ 99%

Volatility Pure substance; TGA, heating rate 20 °C /min in air
Weight Loss (%) Temperature ℃
0.7 150
0.7 175
1.0 200
2.1 225
7.2 250
19.8 275


Solubility At 20 °C (g/100ml solvent)
Solvent Solubility
Acetone 19%
Chloroform 45%
Ethanol -
Ethyl Acetate 24%
n-Hexane 5%
Methanol 38%
Methylene Chloride 56%
Toluene -
Water <0.01


Applications
1.Polypropylene :
ABS : 0.3-0.5wt% based on polymer weight
PS : 0.2-0.3wt% based on polymer weight
HIPS : 0.2-0.3wt% based on polymer weight
2. High density polyethylene : 0.2-0.3wt% based on polymer weigh
3. Polyamide : 0.2-0.3wt% based on polymer weigh
4. Polyester : 0.2-0.3wt% based on polymer weigh

Packing: 25kg paper drum or carton