uv-329

uv absorber 329
3147-75-9

浙江更新日期：2012-07-13

hangzhou flying technology co.,ltd

非会员

联系人：bubble

电话：0571-87389059拨打

产品详情:

中文名称：: uv-329

英文名称：: uv absorber 329

CAS号：: 3147-75-9

UV Absorber 329 UV-329

Chemical Name: 2-(2’-hydroxy-5’-tert-octyl phenyl) benzotriazole

CAS No.: 3147-75-9

EINECS No.: 221-573-5

Molecular Formula: C₂₀H₁₅N₃O

Molecular Weight: 323.43

Structural Formula:

Solubility:UV-329 is soluble in benzene, styrene, heptane, ethyl acetate, slightly soluble in ethanol, insoluble in water, and it has a variety of resin has good compatibility.

Property Specification

Appearance White powder

Melting Point 100℃-105℃

Assay Min. 99%(HPLC)

Light Transmittance(440nm) Min. 97%

(500nm) Min. 98%

Ash content Max. 0.1%

Loss on Drying Max. 0.5%

Volatile Matter Max. 0.5%

Applications:

UV-329 has a very effective light stabilizing effect, prevents yellowing and degradation of polymer. Can be used for example, polyolefin, polystyrene PVC, unsaturated polyester, acrylic resin and ABS resin. UV-329 can be used alone, or with other stabilizers used in conjunction. UV-329 and hindered amine light stabilizers when used in combination, have a synergistic effect. The dosage of UV-329 in 0.10-1.0% (A highly effective light stabilizer, it has a broad UV absorption spectrum and low volatility . For PS, polymethyl methacrylate, unsaturated polyester ( UPE ), rigid PVC, polycarbonate, ABS resin, etc, esp . In clear products or engineering plastics processed under high temperature . It has synergetic effect if used with antioxidant, which can raise heat and oxidization stabilities of the product . Usual amount to use is 0.01-1%.

Stability and Storage:

In a closed system and dry, dark place without any light exposure.

Package: 25 kg drum with inner PE bag

Shelf life:24 months

uv-329;uv-531