Chemical Name

2-(2'-Hydroxy-3', 5'-di-tert-amylphenyl) benzotriazole

Formula

C₂₂H₂₉N₃O

Structure

CAS NO.

25973-55-1

Molecular Weight

351.5

Specifications

Appreance

Yellowish powder or cylindrical granule

Purity

≥99%(HPLC)

Melting Point

79-87 ^oC

Ash

≤0.1%

Loss On Drying

≤0.5%

Transmittance

460 nm≥96% 500 nm≥97%

Advantage and

Application

1. This product is a high efficient UV absorber, which can effectively absorb 270-340 nm UV light.
2. The light stability is similar to UV-326 and UV-327, but this product has good dissolubility with the resins. Its heat volatility is low and its durability to washing is very good.
3. This product is suitable for polyolefin (especially PE), polyester, styrene polymers, polyamide, PMMA, PC, elastomers, etc.

Recommended

dosage

PS

PE

Polyester

PVC

PC

0.2-0.5%

0.2-0.4 %

0.3-0.5%

0.2-0.5 %

0.15-0.3%

Package

20KG cartons or drum