U-pack® B225
- Chemical Family
- Phenols & Phenolics, PhosphitesPhenols & PhenolicsPhosphites
- Molecular Formula
- C42H63O3P, C73H108O12
U-pack® B225 is a family of binary synergistic blends used to protect polymers during processing and long-term aging.
Properties
- Physical Form
- Powder
- Solid
Identification
- Chemical Name
Pentaerythritol tetrakis(3-(35-di-tert-butyl-4-hydroxyphenyl)propionate); Tris(24-ditert-butylphenyl) phosphite
Product families
- Antioxidants & Stabilizers
- Antioxidants & Stabilizers
Other characteristics
- Brand
- U-pack
- Features
Good Thermal Stability, Heat Aging Resistant, Low Color Formation
- Functions
- Antioxidant
- Compatible Polymers & Resins
Ethylene Vinyl Acetate (EVA), Polybutene, Polyethylenes (PE), Polyolefins, Polypropylenes (PP), Polyurethanes (PU)
- Use Levels
- 0.1 - 0.25%
- Appearance
- White to off - white powder
- Shelf LIfe
- 12 Months
- Applications
U-pack® B225 is used in polyolefins and olefin-copolymers such as polyethylene, polypropylene, polybutene and ethylene-vinylacetate copolymers. The blend can also be used in other polymers such as engineering plastics, styrene homo- and copolymers, polyurethanes, elastomers, adhesives, and other organic substrates. U-pack® B225 can be used in combination with light stabilizers of the RIASORB® range. U-pack® B225 is a convenient blend addressing a range of stabilization needs. The relatively high phenolic antioxidant content of U-pack® B225 addresses applications requiring more long-term thermal stability. In the recommended applications U-pack® B225 provides significant benefits, such as maintenance of original melt flow, low color formation, long-term-thermal stability. In polyolefins, the concentration levels for U-pack® B225 range typically between 0.1% and 0.25% depending on substrate and processing conditions. The optimum level is application specific.
- Technology
- Elastomers
- Plastics
- Handling and Safety
The use of proper protective equipment is recommended. Excess exposure to the product should be avoided. Wash thoroughly after handling.
- Material Features
- Good Thermal Stability
- Heat Aging Resistant
- Low Color Formation
- Storage Condition
Store the product in a cool, dry, well-ventilated area away from incompatible materials, keep tightly closed. With proper storage, shelf life of this product is 12 months from the manufacture date.
- Certifications and Compliance
- ISO 14001
- OHSAS
- Compatible Polymers and Resins
- Ethylene Vinyl Acetate (EVA)
- Polybutene
- Polyethylenes (PE)
- Polyolefins
- Polypropylenes (PP)
- Polyurethanes (PU)
- Plastics and Elastomers Functions
- Antioxidant
Technical data
Table 1 of 1
2 rows| Characteristic | Value |
|---|---|
| Molecular Weight (C₄₂H₆₃O₃P) | 647 |
| Molecular Weight (C₇₃H₁₀₈O₁₂) | 1178 |
