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Hindered Amine Light Stabilizer UV944 CAS No. 70624-18-9
Light Stabilizer UV944 Chemical name:
Poly-{[6-[(1,1,3,3-tetramethylbutyl)amino]-1,3,5-triazine-2,4-diyl][(2,2,6,6-tetrameth yl-4-piperidyl)imino]-1,6-hexanediyl[(2,2,6,6-tetramethyl-4-piperidyl)imino]}
CAS NO: 70624-18-9
Molecular formula: [C35H64N8]n (n=4-5)
Specification of Light stabilizer UV944
| Type | index |
| Appearance | White Granular or Powder |
| Light transmittance | ≥93 %(425nm);≥95 %(450nm) |
| Volatile matter | ≤1.0% |
| Ash | ≤0.1% |
| Molecular weight(Mn ) | 2100-3000 |
| Softening point | 110°C -130°C |
| Purity% | ≥99 |
| SpecificGravity(20℃) | 1.01g/cm3 |
| BulkDensity | 500-700g/l |
Solubility: Soluble in organic solvents, slight in methanol, insoluble in water
Introduction: It is one kind of high molecular Light stabilizer , with multiple functional groups.
It can be used in low density PE film, PP tape, EVA film, ABS, PP fiber, PPE, polyacetals, polyamides,
polyurethanes, PVC, PVC blending material, polystyrene , rubber and viscose, It can work with UV
adsorbent because its special structutre and large molecular weight( 3000,). It also can be used in film
and fiber. also can be used as antioxidant and heat stabilizer of polymer, The dosage of agricultural film is 2‰
Cautions :
S or halogen may offer bad effects , or some stabilizer, insecticide and fire retardant may react with 944.
Please test before use.
Storage
Store in dry places under30ºC avoiding moisture and heat.
Package of Light stabilizer UV944
25kgs cardboard/drum
