Knowde Enhanced TDS
Identification & Functionality
- Chemical Name
- Plastics & Elastomers Functions
- Technologies
- Product Families
- Chemical Structure
Phenol, 2−(2H−benzotriazol−2−yl)−4−(1,1,3,3− tetramethylbutyl)−
Features & Benefits
- Labeling Claims
- Materials Features
Applications & Uses
- Applications
- Applicable Processes
- Compatible Polymers & Resins
- Use Level
- 0.1 - 0.5% (in plastics), 0.5 - 3% (in polyester gel coats)
- Uses
SperseStab™ 3290 is used in the light stabilization of plastics, including polyesters, rigid and flexible PVC (depending on thermal stabilizer system), styrenic polymers, acrylics and polycarbonates. End use applications vary and can include molded items, extruded sheets, glazing materials for window lighting and signage.
- Guidelines for Use
Combinations with HALS are particularly advantages as well as combinations with other UV Absorbers, antioxidants and benzoate stabilizers. Formulations are dependent on the substrate, performance requirements, co-stabilizers and other factors. Please contact Interspersal Inc. for specific recommendations.
Properties
- Appearance
- White to off white powder
- Typical Properties
- Solubility
| Value | Units | Test Method / Conditions | |
| Melting Point | 102 - 106 | °C | — |
| Molecular Weight | 323.4 | g/mol | — |
| Volatiles | max. 0.5 | % | — |
| Ash Content | max. 0.5 | % | — |
| UV Absorbance (440nm) | min. 97 | — | — |
| UV Absorbance (500 nm) | min. 98 | — | — |
| Value | Units | Test Method / Conditions | |
| Acetone (at 20°C) | 9 | wt % | — |
| Benzene (at 20°C) | 32 | wt % | — |
| Chloroform (at 20°C) | 37 | wt % | — |
| Cyclohexane (at 20°C) | 15 | wt % | — |
| Ethyl Acetate (at 20°C) | 15 | wt % | — |
| n-Hexane (at 20°C) | 6 | wt % | — |
| Methanol (at 20°C) | 0.6 | wt % | — |
| Methylene Chloride (at 20°C) | 38 | wt % | — |
| Water (at 20°C) | max. 0.01 | wt % | — |
Regulatory & Compliance
- FDA Regulations
SperseStab™ 3290 has been cleared for use in polycarbonate resins under 21 CFR 178.2010. Please contact your Interspersal representative for complete details, including restrictions of use.
Storage & Handling
- Storage Condition
Containers should be kept tightly closed when not in use and stored in a cool, dry place.