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Tinuvin® 234

Technical Datasheet | Supplied by BASF
Tinuvin® 234 by BASF is chemically phenol, 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl) grade. Acts as a UV absorber. It is a high molecular weight product belonging to hydroxyphenyl benzotriazole class. Imparts excellent light stability to a variety of polymers. Features low volatility, exceptional light absorbing characteristics and good compatibility in various substrates. This makes the product particularly suitable for applications characterized by high surface area, such as films and fibers. Suitable for polycarbonates, polyalkylene terephthalates, polyacetals, polyamides, polyphenylene sulfide, polyphenylene oxide, aromatic copolymers, thermoplastic polyurethane and polyurethane fibers, as well as for polyvinylchloride, styrene homo- and copolymers. Applications include molded articles, films, sheets and fibers. Use levels of Tinuvin® 234 ranges between 0.15 and 0.60%, depending on substrate and performance requirements of the final application.
Product Type
Light Stabilizers / UV Absorbers > Benzotriazoles
Chemical Composition
Phenol, 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)
CAS Number
70321-86-7
Masterbatch
No
Physical Form
Powder
Appearance
Yellow
Product Status
COMMERCIAL
Applications/ Recommended for
  • Other Thermoplastic > POM (Polyacetal)
  • Other Thermoplastic > PPS
  • PA, Nylon
  • PC
  • PVC
  • TPE and TPV > TPU (or TPE-U)
  • Fibers/ Textiles/ Carpets > Fibers
  • Safety, regulation & environment > Low volatiles
  • Polymer protection > Weatherability (UV, moisture, Oxygen...)
Food contact approval
Yes
Bio Based
No

Tinuvin® 234 Properties

Property

Value & Unit
Test Condition
Test Method
Molecular weight
448 g/mol
Melting range
137 - 141 °C
Flash point
> 150 °C

SpecialChem additionnal informations based on CAS Number : 70321-86-7

Hansen Solubility Parameters

[20, 5.6, 2.5]
?
[δD - Dispersion force interactions, δP - Polar force interactions, δH - Hydrogen bond force interactions]

Please note, these HSP values are estimations. It is based upon the “like seeks like” principle. It splits an ingredients interactions into three parameters; δD (Dispersion force interactions), δP (Polar forces interactions) and δH (Hydrogen bond force interactions). Hansen Solubility Parameters can help you find a wide range of products that are predicted to be compatible with Tinuvin® 234. A practical determination of these HSP values would provide higher certainty. Learn More.

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