Technical Specification

Molecular Formula: C₄₁H₅₀N₆O₂

CAS No.: 103597-45-1

Chemical Name: 2,2'-Methylenebis[6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol]

Description

UV Absorber UV-360 is a benzotriazole UV absorber with dual functions of light stabilizer and antioxidant. It absorbs ultraviolet rays in the range of 300–400 nm, with absorption peaks at 308 nm and 349 nm. It features high temperature resistance, extraction resistance, low volatility, low migration, wide absorption range and high absorption efficiency.

表格

Application & Dosage

It is suitable for acrylic resin, polyimide, polycarbonate, polystyrene, polyphenylene sulfide, polyphenylene, polyamide, polyacetal and elastomers. It is especially suitable for high-temperature processing requiring high UV load capacity, high addition level, low volatility and low blooming tendency. It prevents deposits on molds and chill rolls, and inhibits exudation and surface crystallization at elevated temperatures. It is particularly ideal for two-layer sheets, adhesive layers, calendered layers and coextruded layers, enabling direct two-layer sheet extrusion without a third layer. Typical dosage: 0.1–0.5%.

Applicable for processing conditions requiring high UV load, low volatility and good compatibility. It delivers excellent UV shielding effect, reduces sublimation under ventilation, and avoids deposits on molds, chill rolls and sizing dies. It prevents exudation or surface crystallization of parts during processing or at high service temperatures. These properties make it well-suited for composite film components, fibers, sheets, two-layer sheets, adhesive layers, calendered and coextruded semi-finished products.