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Polymer Additives

Milestab 328

Technical DataSheet | Supplied by MPI Chemie

2-(2'-Hydroxy-3',5'-di-tert-pentylphenyl)-benzotriazole. Acts as a UV absorber. It prevents the oxidation, chain fission, uncontrolled recombinations and cross-linking reactions that are caused by photo-oxidation of polymers. It dissipates the absorbed light energy from UV rays as heat by reversible intramolecular proton transfer. This reduces the absorption of UV rays by the polymer matrix and hence reduces the rate of weathering.

Milestab 328 Product details

Product Type
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Chemical Composition
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CAS Number
25973-55-1
Physical Form
Various, Powder, granules
Appearance
Yellow
Product Status
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Labels/Agency Rating
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Milestab 328 Properties

Property

Value & Unit
Test Condition
Test Method
Assay (HPLC)
xxxx %
Melting point
xxxxxxx °C
Volatile content
xxxxx %
Ash content
xxxxx %
Transmittance (460nm)
xxxx %
Transmittance (500nm)
xxxx %
Last edited Dec 18, 2017
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