Liquid Organophosphite Stabilizers
Support Polymer Processing Stability Across a Broad Range of Polymer Applications
Dover Chemical offers liquid organophosphite technologies designed to support thermal and oxidative stability across polymer processing applications. Multiple chemistry profiles, phosphorus levels, viscosity ranges, alkylphenol profiles, and regulatory considerations provide formulators with options for maintaining polymer properties, processing consistency, and finished material quality.
Why Choose Dover Liquid Organophosphite Stabilizers
Dover's liquid organophosphite portfolio provides multiple stabilization technologies for polymer processing and heat stabilization requirements. A range of chemistry profiles, phosphorus levels, viscosity ranges, alkylphenol profiles, and regulatory considerations allows formulators to compare technologies based on polymer system, processing conditions, and application-specific stabilization requirements.
Polymer Heat Stabilization
Broad Liquid Phosphite Portfolio
Multiple Phosphorus Profiles
Viscosity & Handling Options
Hydrolytic Stability Options
Application-Specific Solutions
Where Dover Liquid Organophosphite Stabilizers Perform
Dover liquid organophosphite technologies are used across polymer processing applications requiring heat stabilization, oxidative stability support, and processing consistency.
Applications
- Polymer Processing
- Plastics Compounding
- Polymer Stabilization
- Additive Packages
Functions
- Heat Stabilization
- Secondary Antioxidant Stabilization
- Oxidative Stability Support
- Processing Stability
Materials
- Polyethylene (PE)
- Polypropylene (PP)
- Polyvinyl Chloride (PVC)
- Styrenics
- Elastomers
Product Overview
Liquid organophosphite technologies support polymer stabilization during processing by helping address degradation associated with heat and oxidation. Effective stabilizer selection depends on the polymer system, processing conditions, chemistry profile, and physical and regulatory requirements of the formulation.
Dover offers a broad portfolio of liquid Doverphos® technologies with varying phosphorus content, acid number, viscosity, alkylphenol chemistry, and regulatory status. These technologies provide formulators with options for supporting polymer stability, processing consistency, and finished material quality.
Liquid Organophosphite Technologies
Liquid organophosphites function as secondary antioxidant technologies for polymer processing and heat stabilization requirements. Multiple Doverphos® technologies provide a range of chemistry and phosphorus profiles for application-specific polymer stabilization.
Differences in phosphorus content, acid number, viscosity, color, and chemistry profile allow formulators to compare liquid phosphite technologies based on processing and formulation requirements.
HiPure TNPP Technologies
Doverphos® HiPure technologies provide high-purity tris(nonylphenyl) phosphite options for polymer heat stabilization applications. HiPure 4 is designed with low free nonylphenol, while HiPure 4HR and HiPure 4HR Plus provide enhanced hydrolytic stability for applications where moisture exposure and storage conditions are important considerations.
Multiple HiPure technologies allow formulators to evaluate TNPP selection based on purity, hydrolytic stability, and application-specific processing requirements.
Chemistry & Physical Profile Options
Dover's liquid organophosphite portfolio includes multiple chemistry and physical profiles beyond TNPP technologies. Product-specific differences in phosphorus content, acid number, viscosity, alkylphenol profile, and regulatory status provide additional options for application-specific stabilizer selection.
These technical characteristics allow formulators to compare liquid phosphite technologies based on polymer system, processing conditions, formulation requirements, and desired product profile.
Technical Overview
Liquid organophosphite technologies are designed to support polymer stability across a range of processing conditions and stabilization requirements. Chemistry, phosphorus content, acid number, viscosity, color, alkylphenol profile, and regulatory requirements influence product selection and formulation fit.
Dover's liquid stabilizer portfolio includes multiple Doverphos® technologies, providing a range of technical and physical profiles for application-specific polymer processing and heat stabilization requirements.
| Property | Value |
|---|---|
| Product Family | Liquid Organophosphite Stabilizers |
| Technology Platforms | HiPure TNPP & Liquid Doverphos® Technologies |
| Primary Applications | Polymer Processing & Heat Stabilization |
| Primary Function | Secondary Antioxidant Stabilization, Heat Stabilization & Oxidative Stability Support |
| Selection Factors | Chemistry, Phosphorus Content, Acid Number, Viscosity, Alkylphenol Profile & Regulatory Requirements |
| Product Portfolio | Doverphos® Liquid Organophosphite Technologies |
| Technical Support | Application-Specific Product Selection & Formulation Guidance |
Available Products
Dover's liquid organophosphite portfolio includes multiple chemistry and physical profiles for polymer processing and heat stabilization requirements. Product-specific differences in chemistry, phosphorus content, acid number, and viscosity allow formulators to compare technologies based on processing conditions and application-specific stabilization requirements.
HiPure TNPP Technologies
Doverphos® HiPure technologies provide high-purity TNPP options with low free nonylphenol and enhanced hydrolytic stability profiles for application-specific polymer stabilization requirements.
| Product | Chemistry | Key Characteristics |
|---|---|---|
| Doverphos® HiPure 4 | Trisnonylphenyl Phosphite | High-purity TNPP; low free nonylphenol |
| Doverphos® HiPure 4HR | TNPP with TIPA | Improved hydrolytic stability |
| Doverphos® HiPure 4HR Plus | TNPP with TIPA | Maximum hydrolytic stability |
Liquid Organophosphites
Doverphos® liquid organophosphites provide multiple alkyl, aryl, and mixed chemistry profiles with varying phosphorus and viscosity characteristics for application-specific stabilizer selection.
| Product | Chemistry | Phosphorus | Viscosity @ 25°C |
|---|---|---|---|
| Doverphos® 4 | Trisnonylphenyl Phosphite | 4.3% | 6,000 cps |
| Doverphos® 6 | Triisodecyl Phosphite | 6.2% | 15 cps |
| Doverphos® 7 | Phenyl Diisodecyl Phosphite | 7.1% | 17 cps |
| Doverphos® 8 | Diphenyl Isodecyl Phosphite | 8.3% | 14 cps |
| Doverphos® 9-EH | Ethylhexyl Diphenyl Phosphite | 9.0% | 9.5 cps |
| Doverphos® 10 | Triphenyl Phosphite | 10.0% | 17 cps |
| Doverphos® 11 | Tetraphenyl Dipropyleneglycol Diphosphite | 10.9% | 80 cps |
| Doverphos® 12 | Poly(dipropyleneglycol) Phenyl Phosphite | 12.0% | 487 cps |
| Doverphos® 49 | Tris(tridecyl) Phosphite | 4.9% | 41 cps |
| Doverphos® 54 | Tris Alkyl (C12–C15) Phosphite | 5.3% | 20 cps |
| Doverphos® 213 | Diphenyl Phosphite | 13.3% | 12 cps |
| Doverphos® 253 | Dioleyl Hydrogen Phosphite | 5.3% | 35 cps |
| Doverphos® 613 | Alkyl (C12–C15) Bisphenol A Phosphite | 5.4% | 230 cps |
| Doverphos® 675 | Alkyl (C10) Bisphenol A Phosphite | 6.7% | 275 cps |
Selecting the Right Liquid Organophosphite Stabilizer
Selecting the appropriate liquid organophosphite stabilizer depends on the polymer system, processing conditions, stabilization requirements, regulatory objectives, and desired chemistry profile. Dover's portfolio includes HiPure TNPP technologies and a broad range of liquid organophosphites with varying phosphorus levels, viscosity profiles, hydrolytic stability, and alkylphenol chemistries to support diverse polymer processing applications. The guide below provides a starting point for evaluating the appropriate stabilizer based on common formulation objectives and processing requirements.
| If You Need To… | Consider… |
|---|---|
| Select a high-purity TNPP technology with low free nonylphenol | Doverphos® HiPure 4 |
| Improve TNPP hydrolytic stability | Doverphos® HiPure 4HR or HiPure 4HR Plus |
| Select based on phosphorus content and viscosity | Application-Specific Doverphos® Selection |
| Evaluate alkylphenol-containing or alternative chemistry profiles | Product-Specific Chemistry Selection |
| Support polymer heat stabilization | Liquid Doverphos® Technologies |
| Compare FDA status and regulatory requirements | Product-Specific Regulatory Review |
| Evaluate liquid phosphite stabilization requirements | Technical Application Support |
Product & Performance Advantages
Dover's liquid organophosphite technologies are designed to support polymer processing and heat stabilization requirements while providing multiple chemistry and physical profiles for application-specific product selection.
Technical Resources & Supporting Documentation
Access technical documentation, product data, and application guidance for Dover's liquid organophosphite portfolio. These resources support product selection, stabilizer evaluation, and formulation development across polymer processing and heat stabilization applications.
Explore Related Dover Products
Dover offers complementary polymer additive technologies designed to support processing stability, oxidative stability, material quality, and application-specific performance requirements. Liquid organophosphite technologies can be evaluated alongside solid stabilizers and processing additives based on the polymer system and processing environment.