Chemical 

composition:

50% light stabilizer 944 + 50%  light stabilizer 622

CAS:

70624-18-9 65447-77-0

Molecular 

Weight:

2000-3100

Properties and 

application:

Co-polymerized HALS with excellent and long lasting stabilizing effect against  light 

and heat, low volatility, hardly extractable, particularly suitable for  PP fibre, tape, thin 

and thick LLDPE,  LDPE products.

Product quality 

index

Items

Standard

Appearance

White powder or light yellow granules

Light Transmittance

425nm:≥90%   500nm:≥93%

Volatile

≤1%

Ash

≤0.1%

Softening Point

55-140℃

Solubility

Soluble in acetone, ethyl acetate,Insoluble 

in water