LIGHT STABILIZER 622 (CAS:65447-77-0)

LIGHT STABILIZER 622

CAS No.[65447-77-0] Butanedioic acid, dimethylester, polymer with 4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol

Light stabilizer 622  is the light stabilizer of choice for all applications calling for low volatility and minimal  migration, because of its oligomeric structure with high molecular weight. Furthermore HALS 622 is effective as antioxidant and contributes significantly to the long- term heat stability of polyolefins and tackifier resins.

Features & benefits

The effectiveness of  HALS 622 surpasses significantly that of UV absorbers, particularly in pigmented systems. Combinations of HALS 622 with UV absorbers, e.g. 

Applications

Light stabilizer 622 areas of application include polyolefins (PP, PE), olefin copolymers such as EVA as well  as blends of polypropylene with elastomers. In addition HALS 622 is highly effective in polyacetals, polyamides and polyurethane applications.

Physical Properties

Solubility (20 °C) g/100g solution 

Acetone 4.0 

Chloroform >40 

Ethanol 0.08 

Ethylacetate 3.0 

n-Hexane <0.01 

Methanol 0.05 

Methylene Chloride >40 

Toluene 15 

Water <1.6 mg/l 

Volatility (pure substance; TGA-data, heating rate 20°C/min in air) 

Temperature (°C) % weight loss 

200                              0.1 

225                              0.2 

250                              0.4 

275                              1.1

300                              3.1 

325                              8.4

Packaging and Handling

Packaging: 25Kg/Carton

Store the product in a cool, dry, well-ventilated area away from incompatible materials. Unless stated, proper storage will permit usage of the product for 12 months from the manufacture date. For additional handling and toxicological information, consult the Material Safety Data Sheet.