UV-622

Chemical Name: Butanedioic acid, polymer with 4-hydroxy-2,2,6,6-tetramethyl-1-piperidineethanol

Formula: H[C₁₅H₂₅O₄N]nOCH₃

Structure:

CAS NO.: 70198-29-7

Molecular Weight: >2500

Appearance: White powder or light yellow granules

Melting Point: 50-70 ^°C

Ash: ≤0.1%

Loss On Drying: ≤0.5%

Transmittance: 425 nm≥95% 500 nm≥97%

Advantage and Application:

Polymerized HALS with high molecular weight, low volatility, low degradation, hardly extractable (by water) or bleachable (bygas), and fine heat stability, working well with AO and UVA;Widely used in PP, PE, PS, ABS, PU, POM, TPE etc.

Package:25KG cartons or drums

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