Doverphos® LGP-12
Liquid Polymeric Phosphite Stabilizer
Doverphos® LGP-12 is a proprietary liquid polymeric phosphite stabilizer developed for demanding polyolefin processing applications requiring high-performance stabilization, low migration characteristics, and modern regulatory compliance.
Why Choose Doverphos® LGP-12
Doverphos® LGP-12 helps polymer manufacturers improve processing stability, support regulatory compliance, and enhance performance in demanding extrusion and recycled-content applications. Its high molecular weight chemistry delivers low migration performance while helping processors maintain consistency, efficiency, and product quality across a wide range of polyolefin systems.
Low Migration Performance
PFAS-Free Alternative
Supports Circular Plastics
Improved Processing Stability
Melt Flow Retention
TNPP Replacement Alternative
Where Doverphos® LGP-12 Performs
Doverphos® LGP-12 supports a broad range of extrusion, packaging, compounding, and recycled-content applications across polyolefin processing markets. The additive is compatible with multiple polymer systems and helps manufacturers meet demanding performance, regulatory, and processing requirements.
Applications
- Blown Film Extrusion
- Cast Film Extrusion
- Flexible Packaging
- Food Packaging
- PCR/PIR Processing
- Compounding
- Wire & Cable
- Consumer Goods
- Industrial Films
Functions
- Processing Stabilization
- Secondary Antioxidant
- Melt Flow Stabilization
- Color Protection
- Hydroperoxide Decomposition
- Recycling Performance Enhancement
- Low Migration Stabilization
Materials
- LLDPE
- LDPE
- HDPE
- Polypropylene (PP)
- Polyolefin Blends
- Recycled Polyolefins
- Masterbatch Systems
Product Overview
Doverphos® LGP-12 is a proprietary liquid polymeric phosphite stabilizer developed to improve thermal processing performance in polyolefin manufacturing and recycling operations. Designed as a modern alkylphenol-free alternative to TNPP, the additive provides effective hydroperoxide decomposition to help protect polymers from thermal oxidation, melt flow degradation, and color formation during high-temperature processing.
Its high phosphorus content and polymeric chemistry support excellent compatibility in thermoplastic resins while enabling effective stabilization at lower loading levels. Doverphos® LGP-12 is particularly well suited for extrusion, food packaging, and recycled-content applications where long-term processing performance, low volatility, and regulatory considerations are critical.
Food Contact & Regulatory
Doverphos® LGP-12 is designed for applications where regulatory compliance and formulation integrity are essential. Its high molecular weight polymeric chemistry helps reduce volatility and migration potential compared to conventional low molecular weight phosphites, making it well suited for food-contact packaging and other demanding applications. The product supports FDA food-contact compliance, EFSA authorization for food-contact polyolefins, PFAS-free formulation strategies, and low migration or non-NIAS-focused positioning initiatives.
Circular Plastics & Recycling
As recycled-content requirements continue to increase across packaging markets, processors face greater challenges associated with polymer degradation, gel formation, color instability, and inconsistent melt flow behavior. Doverphos® LGP-12 helps improve processing consistency in PCR and PIR systems by reducing oxidative degradation during repeated thermal histories. The additive supports improved film quality, reduced defects, and more stable processing in recycled polyolefin formulations.
Processing Performance
Doverphos® LGP-12 helps reduce oxidative degradation during high-temperature polymer processing operations including extrusion, compounding, pelletizing, and film conversion. The additive works synergistically with hindered phenolic antioxidants to support improved melt flow consistency, reduced gels, lower color formation, reduced plate-out, and improved long-term process stability under demanding thermal and shear conditions.
Technical Overview
The following properties provide a general overview of the product’s physical characteristics and chemical profile.
| Property | Value |
|---|---|
| Chemical Family | Polymeric Phosphite |
| Chemical Name | Proprietary |
| CAS # | Proprietary |
| Physical Form | Liquid |
| Appearance | Clear to slightly hazy liquid |
| Phosphorus, % | 7.3% |
| Alkylphenol Content | None |
| Volatility Profile | Low Volatility |
Compliance & Sustainability Advantages
Doverphos® LGP-12 supports food-contact compliance, low migration performance, and circular plastics initiatives in demanding polymer processing applications.
Technical Resources & Supporting Documentation
Access technical documentation, regulatory information, and application resources for Doverphos® LGP-12. These materials are designed to help manufacturers evaluate performance, support formulation development, and streamline product qualification processes.
Technical Data Sheet(s)
Explore Related Dover Products
Dover offers a broad portfolio of polymer additives designed to support stabilization, recycled-content processing, clarity enhancement, and demanding extrusion applications across a wide range of polyolefin systems.