Solid Antioxidants & Organophosphites
Support Polymer Stability Through Processing and End Use
Dover Chemical offers solid antioxidant and organophosphite technologies designed to help protect polymers from thermal and oxidative degradation during processing and use. Multiple chemistry, melting point, phosphorus, and solubility profiles provide formulators with options for maintaining polymer properties, processing consistency, and finished material quality.
Why Choose Dover Solid Antioxidants & Organophosphites
Dover’s solid antioxidant and organophosphite portfolio provides multiple stabilization technologies for polymer processing and property maintenance. A range of chemistry, melting point, phosphorus, volatility, and solubility profiles allows formulators to compare technologies based on polymer system, processing conditions, and application-specific stabilization requirements.
Polymer Stabilization
Multiple Chemistry Platforms
Processing Stability
Multiple Physical Profiles
Application-Specific Solutions
Polymer Technical Support
Where Dover Solid Antioxidants & Organophosphites Perform
Dover solid antioxidant and organophosphite technologies are used across polymer processing applications requiring thermal and oxidative stabilization, property maintenance, and processing consistency.
Applications
- Polymer Processing
- Polymer Stabilization
- Plastics Compounding
- Additive Packages
Functions
- Antioxidant Stabilization
- Thermal Stabilization
- Oxidative Stability
- Processing Stability
Materials
- Polyethylene (PE)
- Polypropylene (PP)
- Polyvinyl Chloride (PVC)
- Engineering Thermoplastics
- Elastomers
Product Overview
Solid antioxidant and organophosphite technologies help protect polymer properties from thermal and oxidative degradation during processing and use. Effective stabilizer selection depends on the polymer system, processing conditions, stabilization requirements, and desired chemistry and physical profile.
Dover offers solid organophosphite and antioxidant technologies across multiple chemistry, phosphorus, melting point, volatility, and solubility profiles. These technologies provide formulators with options for supporting polymer stability, processing consistency, and finished material quality.
Solid Organophosphite Technologies
Solid organophosphite technologies support polymer stabilization during processing by helping address degradation associated with heat and oxidation. Multiple chemistry and phosphorus profiles provide formulators with options for application-specific stabilization requirements.
Doverphos® technologies include pentaerythritol diphosphite and other solid phosphite options with varying melting point, phosphorus, volatility, and solubility profiles.
Solid Antioxidant Technologies
Dovernox® solid antioxidant technologies provide additional options for protecting polymer properties during processing and use. These technologies support stabilization requirements where oxidative degradation can affect material performance and finished product quality.
Multiple antioxidant grades allow formulators to evaluate product selection based on polymer system, processing conditions, and application-specific stabilization requirements.
Advanced Stabilization Technology
Advanced polymer processing applications may require stabilizer technologies with specialized thermal, hydrolytic, volatility, and regulatory profiles. Product-specific technology platforms can provide additional performance and compliance characteristics beyond general polymer stabilization requirements.
For applications requiring elevated-temperature processing stability, hydrolytic stability, low volatility, and broad regulatory positioning, Doverphos® S-9228 provides a specialized technology platform with additional product-specific performance and compliance data.
Selecting the Right Solid Antioxidant or Organophosphite
The optimal solid stabilizer depends on the polymer system, processing temperature, degradation pathway, and desired chemistry and physical profile. Organophosphite technologies support stabilization during polymer processing, while solid antioxidant technologies provide additional protection against oxidative degradation during processing and use.
Melting point, phosphorus content, volatility, solubility, and product form can further influence additive selection and formulation fit. Dover’s solid stabilizer portfolio allows formulators to compare these characteristics across multiple Doverphos® and Dovernox® technologies.
Technical Overview
Solid antioxidant and organophosphite technologies are designed to support polymer stability across a range of processing conditions and stabilization requirements. Chemistry, melting point, phosphorus content, volatility, solubility, and physical form influence product selection and formulation fit.
Dover’s solid stabilizer portfolio includes multiple Doverphos® organophosphite and Dovernox® antioxidant technologies, providing a range of technical profiles for application-specific polymer stabilization requirements.
| Property | Value |
|---|---|
| Product Family | Solid Antioxidants & Organophosphites |
| Technology Platforms | Solid Organophosphites & Antioxidant Technologies |
| Primary Applications | Polymer Processing & Stabilization |
| Primary Function | Polymer Stabilization, Thermal Stability & Oxidative Stability Support |
| Selection Factors | Chemistry, Processing Conditions, Melting Point, Phosphorus, Volatility & Solubility |
| Product Portfolio | Doverphos® & Dovernox® Technologies |
| Technical Support | Application-Specific Product Selection & Formulation Guidance |
Available Products
Dover’s solid stabilizer portfolio includes organophosphite and antioxidant technologies with multiple chemistry, physical form, melting point, phosphorus, and solubility profiles. Product-specific technical characteristics allow formulators to compare technologies based on polymer system, processing conditions, and stabilization requirements.
Solid Organophosphites
Doverphos® solid organophosphites provide multiple chemistry and physical profiles for polymer stabilization requirements, including high-melting-point powder technologies and lower-melting flake options.
| Product | Chemistry | Appearance | Melting Point | Phosphorus |
|---|---|---|---|---|
| Doverphos® S-9228 | Bis(2,4-dicumylphenyl) pentaerythritol diphosphite | Off-white free-flowing powder | 230°C | 7.3% |
| Doverphos® S-9228T | S-9228 plus triisopropanolamine | Off-white free-flowing powder | 230°C | 7.3% |
| Doverphos® 480 | Tris(2,4-di-tert-butylphenyl) phosphite | White free-flowing powder | 185°C | 4.8% |
| Doverphos® S-680 | Distearyl pentaerythritol diphosphite | White flake | 55°C | 8.0% |
| Doverphos® S-682 | S-680 plus triisopropanolamine | White flake | 56°C | 8.0% |
Hindered Phenolic Antioxidants
Dovernox® solid antioxidant technologies provide two molecular and solubility profiles for polymer stabilization and property maintenance requirements.
| Product | Chemistry | Appearance | Melting Point | Molecular Weight |
|---|---|---|---|---|
| Dovernox® 10 | Tetrakis methylene (3,5-di-t-butyl-4-hydroxyhydrocinnamate) methane | White crystalline powder | 115°C | 1178 |
| Dovernox® 76 | Octadecyl 3,5-di-t-butyl-4-hydroxyhydrocinnamate | White free-flowing powder | 51°C | 531 |
Selecting the Right Solid Antioxidant or Organophosphite
Selecting the appropriate solid antioxidant or organophosphite depends on the polymer system, processing conditions, stabilization requirements, and desired chemistry profile. Dover’s portfolio includes solid organophosphites and antioxidant technologies with varying phosphorus levels, melting points, volatility, solubility, and physical forms to support a broad range of polymer processing applications. The guide below provides a starting point for evaluating the appropriate stabilizer based on common processing requirements, performance objectives, and formulation needs.
| If You Need To… | Consider… |
|---|---|
| Support demanding elevated-temperature polymer processing | Doverphos® S-9228 |
| Select a high-purity solid organophosphite | Doverphos® 480 |
| Use a higher-phosphorus solid organophosphite | Doverphos® S-680 or S-682 |
| Select a pentaerythritol diphosphite technology | Doverphos® S-9228, S-680 or S-682 |
| Select a solid antioxidant for polymer property maintenance | Dovernox® 10 or Dovernox® 76 |
| Compare stabilizer technologies by physical and chemistry profile | Application-Specific Product Selection |
| Evaluate polymer stabilization requirements | Technical Application Support |
Product & Performance Advantages
Dover’s solid antioxidant and organophosphite technologies are designed to support evolving polymer stabilization requirements while providing multiple options for processing stability, oxidative stability, and application-specific product selection.
Technical Resources & Supporting Documentation
Access technical documentation, product data, and application guidance for Dover’s solid antioxidant and organophosphite portfolio. These resources support product selection, stabilizer evaluation, and formulation development across polymer processing and stabilization applications.
- Data Sheet
Explore Related Dover Products
Dover offers a broad portfolio of polymer additive technologies designed to support processing stability, oxidative stability, material quality, and application-specific performance requirements. Solid antioxidant and organophosphite technologies can be supported by complementary stabilizers and processing additives selected for specific polymer systems and processing conditions.