Light stabilizer 944

Chemical name: Poly {[6?[(1,1,3,3-tetramethylbutyl)amino]-1,3,5-triazine
2,4-diyl][(2,2,6,6-tetramethyl-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)
Chemical structure:
Quality standard:
Appearance: white powder or granule
Light transmittance:≥ 93%(425nm)
                    ≥95%(500nm)
Volatile matter:1.0%
Ash: ≤0.1%
Molecular weight(Mn):21OO-3000
Property: Softening point;110℃-130℃
Bulk density:548-646(g/L)
Relative density：101(20℃)
Weight loss temp:>270℃
Solubility: Soluble in organic solvents, slight in methanol, insoluble in water
Introduction: It is one kind of high molecular Lighl stabilizer, with multiple functional groups .It can be used in low density PE film, PP tape, EVA film, ABS, PP fiber PE, 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 0.2%
Cautions:S or halogen may offer bad effects, or some stabilizer, insecticide and fire retardant may react with 944, Please test before use.
Packing & Storage: Avoid high temp. and moisture,the specs.of packing is 25kg/carton,or according to the customer's demand.