Specialty additives for UV curing & polymer protection

UV Absorbers

UV Absorber UV-1164

2-(2-Hydroxy-4-octyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine

High-efficiency triazine UVA — the highly compatible choice for polyolefins and engineering plastics.

Product Description

UV-1164 is a hydroxyphenyl-triazine UV absorber efficiently covering 300–400 nm. Its octyloxy side chain yields outstanding compatibility with polyolefins; low volatility and high-heat stability allow high loadings without blooming.

In PP and PE films, tapes and TPO automotive parts, UV-1164 suppresses chalking and fading; it is equally reliable in PA, PC, PET, PBT, ASA, ABS and PMMA. Compounded with HALS such as UV-944 or UV-622 it shows marked synergy.

Typical loadings are 0.2–0.5 wt%. Aolong UV-1164 is ≥98.5% assay with low color contribution and full regulatory documentation.

Key Features

  • Triazine core — strong photostability
  • Outstanding polyolefin compatibility
  • Low volatility, high-heat processing
  • No precipitation even at high loadings

Applications

  • PE/PP films, tapes and sheets
  • TPO bumpers and automotive interiors
  • Polyamide and PC engineering parts
  • PET, PBT and PETG
  • ASA, ABS and PMMA

Specifications

CAS No.2725-22-6
Molecular FormulaC33H39N3O2
Molecular Weight509.69
AppearanceLight yellow crystalline powder
Assay (HPLC)≥ 98.5%
Melting Point82 – 92 °C
Loss on Drying≤ 0.5%

Packaging & Storage

25 kg fiber drum with PE liner or 25 kg carton. Store cool, dry and protected from light; shelf life 24 months in original sealed packaging.

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