LeSORB – UV LIGHT STABILIZER 944
LeSORB – UV STABILIZER 944
Technical Data Sheet
Molecular formula: [C35H66N8]n (n=4-5)
Molecular Weight: 2100-3000
CAS NO.: 70624-18-9
Chemical structure: This structure effectively supports LeSORB’s UV Stabilizer capabilities at molecular level.

Specification:
| Item | Standard | |
| Appearance | White powder or pale yellow granule | |
| Transmittance | 425nm : ≥93.0% 500nm : ≥95.0% | |
| Melting point | 110-130℃ | |
| Volatile | ≤0.5% | |
| Ash | ≤0.1% | |
| Relative Density | 1.01 g/cm3 |
Solubility: Soluble in organic solvents, slight in methanol, insoluble in water. This makes UV 944 is versatile uv light stabilizer in various applications.
Introduction:
LeSORB – UV Light Stabilizer 944 is one kind of high molecular light stabilizer, with multiple functional groups.
It can be used in low density PE film, PP tape, and EVA film. It is use in ABS, PP fiber, and PE. Additionally, it is suitable for polyacetals, polyamides, and polyurethanes. Usage includes PVC, PVC blending material, polystyrene, rubber, and viscose.
LeSORB – UV Light Stabilizer 944 can work with adsorbent because its special structure 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.
It is highly effective as a long-term thermal stabilizer in thin and thick articles. It shows good extraction resistance, particularly when applied with LeSORB – UV stabilizing techniques.
Blend with uv stabilizer 622 for increase performance and result or produce LeSORB – UV 783.
Applications :
- Polyolefins (e.g., polyethylene, polypropylene)
- Styrenics
- Polyurethanes
- Polyamides
- Elastomers
- Automotive and agricultural films
- Fibers, molded articles, coatings
Cautions:
Sulfur or halogen may offer bad effects. Some stabilizers, insecticides, and fire retardants may react with UV 944. Please test before use.
Packing & Storage:
25KG carton or following your demand. Avoid high temp and moisture to maintain LeSORB – UV Stabilizer 944 integrity.