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High clarity and excellent color stability for premium optical performance.
Good melt processability suitable for extrusion and injection molding.
Low extractables and low volatility, supporting compliance with food-contact regulations (FDA 21 CFR §177.1630).
Hydrolysis-resistant aliphatic polyester structure offering enhanced durability in humid environments.
Non-phthalate, REACH-compliant formulation designed for sustainable product stewardship.
Transparent rigid packaging for pharmaceutical blister cards and medical device trays.
Food-grade clamshell containers and deli cups requiring clarity and FDA compliance.
Electronics component housings where dimensional stability and transparency are critical.
Point-of-purchase displays and retail signage requiring high-gloss surface finish.
| Chemical Type | Aliphatic copolyester |
| Product Form | Pellets |
| Appearance | Translucent, off-white to light amber pellets |
| Primary Applications | Rigid transparent packaging, medical devices, electronics enclosures |
| Key Features | Clarity, hydrolysis resistance, low extractables, non-phthalate |
| Regulatory Compliance | FDA 21 CFR §177.1630; EU Regulation (EC) No 10/2011; REACH SVHC-free |
| Glass Transition Temperature (Tg) | 80–85 °C (DSC, 10 °C/min) |
| Melt Flow Rate (MFR) | 12–18 g/10 min (230 °C, 2.16 kg) |
Q1: What is the primary function of Eastman Eastar MN052 in polymer formulations?
A: Eastar MN052 is a non-phthalate polyester resin designed primarily as a plasticizer and processing aid for rigid and semi-rigid PVC, as well as certain thermoplastic elastomers and cellulose-based systems. It enhances melt flow, improves low-temperature flexibility, and contributes to long-term extractable resistance without compromising clarity or surface finish.
Q2: Is Eastar MN052 compatible with food-contact or medical-grade polymers?
A: Eastar MN052 is formulated to meet broad regulatory expectations for indirect food contact applications where permitted by local regulations. It is not intended for direct food contact or implantable medical devices. Formulators should validate compliance with applicable regional requirements—including FDA 21 CFR and relevant EU frameworks—based on final article composition, processing conditions, and end-use exposure scenarios.
Q3: How does Eastar MN052 compare to traditional phthalate plasticizers in terms of volatility and extraction resistance?
A: Eastar MN052 exhibits significantly lower volatility and improved resistance to extraction by water, oils, and alcohols compared to many ortho-phthalates such as DEHP or DINP. Its higher molecular weight and polyester architecture contribute to better retention in finished articles during aging, heat cycling, and leaching challenges—particularly in flexible PVC tubing, flooring, and coated fabrics.
Q4: What are typical dosage guidelines when using Eastar MN052 in PVC compounds?
A: Dosage depends on the desired balance of flexibility, processability, and physical properties. In rigid-to-semi-rigid PVC, it is typically used at low concentrations alongside primary plasticizers—or as a partial replacement—to enhance performance. General usage ranges from 0.1% to 2% by weight relative to polymer, though optimal levels require formulation-specific evaluation through rheological testing and property profiling.
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