Light Stabilizer Tiunvin 622

Chemical Name:

Poly(4-hydroxy-2,2,6,6-tetramethyl-1-piperidineethanol-alt-1,4-butanedioic acid)

Formula H[C15H25O4N]nOCH3  
Molecular Weight 3100-4000
CAS# 65447-77-0


Eversorb 94, Lowilite 622, UV 622


Appearance Colorless to light yellowish mircro granules
Melting point 50℃-70℃
Flash point > 250°C
Solubility(20℃) Water < 0.01
MeoH 0.05
EtoH 0.08
Acetone 4
Ch2Cl2 >40.0
Hexane <0.01


>features: Oligomeric hindered amine light stabilizer (HALS), non-interacting with carbon black, Low color & negligible migration, Low water carryover, Low-dusting bead or powder form.

>UV 622 Is the light stabilizer of choice for all applications calling for low volatility and minimal migration.

>It is highly effective in pigmented systems and systems using carbon black. Typical end-use applications include adhesives, sealants, elastomers, fibers, and films.

>Combinations of Tinuvin 622 with UV absorbersresult in synergistic effects.

>Note: The presence of a UV absorber (e.g. UV 326/328 and UV 531) is recommended in unpigmented or slightly pigmented articles or to improve the light fastness of certain organic pigments.

Handling and Safety: 

>Not intended for use in applications that come in contact with food or in products that may come in contact with mucous membranes or abraded skin or be implanted into the body.

>For additional handling and toxicological information, please consult us for Maternal Safety Date Sheet.


25kg per fiber drum, 9*3 layer 27drum per pallet,or according to customers’ requirements.


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