Polymate Additives Co. |Limited
Add: 206Shi, 101Dong, Huaqiaocheng
Pukou, Nanjing, China, 210031
Tel: +86 (0)25 570 11575
Fax: +86 (0)25 570 16494
Email: polymateadditives@gmail.com
Web: www.PolymateAdditives.com
  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
About us | Products | Service | Contact us   
Light stabilizers  
    Ultraviolet absorbents    
    Pamsorb-531 | Pamsorb-P
Pamsorb-326 | Pamsorb-327 | Pamsorb-328
Pamsorb-1164 | Pamsorb-1577
    Ultraviolet absorbent Pamsorb-P    

Chemical name: 2-(2'-Hydroxy-5'-methylphenyl)benzotriazole
Equivalent: Tinuvin P (Ciba SC) /Lowilite 55 (Chemtura)/Uvinul-3033P (BASF)/Cyasorb UV-5365 (Cytec)
Molecular formula: C13H11N3O
Molecular weight: 225.25
CAS No.: 2440-22-4
Structural formula:

Physical properties

Appearance: Slightly yellow powders
Melting range: 129 ~ 133 C

Flash point: N/A
Specific gravity (g/cm3), @20 C: N/A

Solubility (g/ 100g solvent), @20 C

Water: Insoluble
Ethanol: 0.3
Toluene: 0.2

Benzene: 6.9
Styrene: 7.2
Acetic ether : 3.5



Appearance: Yellowish crystal powders
Assay: 99.0% min
Melting point: 128.0 ~ 132.0 C
Ash: 0.1% max

Volatile: 0.5% max
Transmittance (425nm): 97.0% min
Transmittance (500nm): 98.0% min


Pamsorb-P is high-efficient UV absorbent to absorb UV between 270 ~ 340 nm, used in polystyrene, polyester, PC, Perspex, PE, ABS resin, epoxy resin and cellulose resin. It almost absorbs no visible light, especially capable for colorless transparent and pale colored products. It can be used in plastic products for food.




HALS (hindered amine light stablizers)
Palst-770 | Palst-622 | Palst-944 | Palst-783 | Palst-791 | Palst-3346 | Palst-3529

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