Polymate Additives Co. |Limited
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  Phenolic Antioxidants
Plaox-1010, Plaox-1076, Plaox-1098
Plaox-1024, Plaox-3114
Organophosphite Antioxidants
  Plaox-168, Plaox-626
  Amine Antioxidants
  Plaox-BODPA, Plaox-DNDPA
Plaox-DODPA, Plaox-DCDPA
  Thioester Antioxidants
  Plaox-DLTDP, Plaox-DSTDP
  Blended Antioxidants
  Plaox-B215, Plaox-B225
  Heat stabilizers
  Pherst-TPP, Pherst-ODPP
Light stabilizers
HALS (hindered amine light stabilizers)
  Palst-770, Palst-622, Palst-944
Palst-783, Palst-791
, Palst-3529
  UVA (Ultraviolet absorbents)

Pamsorb-531, Pamsorb-P
Pamsorb-234, Pamsorb-326
Pamsorb-327, Pamsorb-328
Pamsorb-1164, Pamsorb-1577

Flame retardants
Brominated Flame retardants

Plamtar-TBBA, Plamtar-BDDP
Plamtar-DBDPE, Plamtar-BTBPOE
Plamtar-HBCD, Plamtar-TTBPC

  Halogen free Flame retardants
  Plamtar-RDP, Plamtar-BDP
Plamtar-DOPO, Plamtar-DOPO-HQ
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Light stabilizers  
    Hindered amine light stabilizers    
    Palst-770 | Palst-622 | Palst-944 | Palst-783 | Palst-791 | Palst-3346 | Palst-3529    
    Hindered amine light stabilizer Palst-622    

Chemical name: Poly (4-hydroxy-2, 2, 6, 6-tetramethyl-1-piperidine ethanol-alt-1,4-butanedioic acid)
Equivalent: Tinuvin 622 ( Ciba SC )/ Lowilite 62 (Chemtura)/ Uvinul-5062H (BASF)
Molecular weight: 3100 ~ 4000
CAS No.: 65447-77-0
Structural formula:

Physical properties
Appearance: White crystalline powders
Melting range: 55 ~ 70 ˇăC
Flash point: 428 ˇăC
Specific gravity (g/cm3), @20 ˇăC:1.22

Solubility (g/ 100g solvent), @20 ˇăC

Water: Insoluble
Toluene: Soluble

Methanol: Insoluble
Chloroform: Soluble



Appearance: White crystalline powders
Ash: 0.10% max
Volatile: 0.5% max

Clarity of solution: Clear
Transmittance (425nm): 98.0% min
Transmittance (500nm): 99.0% min


Palst-622 belongs to the new generation of polymeric hindered amine light stabilizer, which has excellent hot processing stability, nice compatibility in resin, satisfy extractability against water, and extreme low volatility and migratory. This product can be applied to PE.PP. PS, ABS, PU, polyamide, etc. Optimum effects are obtained when used together with antioxidants and UV absorbers. It is one of the light stabilizers that are sanctioned by FDA to be used in food packages. Reference dosage in PE agricultural film: 0.3-0.6%.




Ultraviolet absorbents
Pamsorb-531 | Pamsorb-P
Pamsorb-326 | Pamsorb-327 | Pamsorb-328
Pamsorb-1164 | Pamsorb-1577

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