Uv absorbers for plastic uvioresistant UV Absorber 327

Chemical Name

2-(2'-Hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazole

Formula

C₂₀H₂₄N₃OCl

Structure

CAS NO.

3864-99-1

Molecular Weight

357.9

Specifications

Appreance

Yellowish crystalline powder

Purity

≥99%(HPLC)

Melting Point

154-157 ^oC

Ash

≤0.1%

Loss On Drying

≤0.5%

Transmittance

  460 nm≥95%   500 nm≥97%

Advantage and

Application

1. This product is a high efficient UV absorber, which can effectively absorb 270-400 nm UV light.

2. Good thermo stability, low volatility, good intermiscibility with the polyolefin.

3. This product almost does not absorb visible light, particularly applicable to colorless and light-colored products.

4. This product is suitable for polyolefin, PVC, PMMA, POM, PU and ABS resin. This product is particularly suited to polypropylene fiber.

Recommended

 dosage

ABS resin,

PE

PP

PVC

0.3-0.5%

0.2-0.4 %

0.3-0.6%

0.2-0.5 %

Package

20KG cartons or drums