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Excellent clarity and gloss for high-end aesthetic performance.
Good chemical resistance to oils, greases, and mild household cleaners.
Outstanding toughness and impact resistance at room and low temperatures.
Low extractables profile suitable for sensitive applications including medical device components.
Processing versatility—compatible with injection molding, extrusion, and blow molding.
Reusable medical trays and instrument housings.
Consumer electronics enclosures requiring transparency and durability.
Food contact packaging components (e.g., reusable containers, lids).
Point-of-purchase displays and retail signage.
Automotive interior trim parts demanding dimensional stability and aesthetics.
| Chemical Type | Copolyester (PET/CHDM-based) |
| Product Form | Pellets |
| Appearance | Transparent, off-white to light amber pellets |
| Primary Applications | Medical devices, food contact packaging, durable consumer goods |
| Key Features | Clarity, toughness, chemical resistance, sterilization compatibility (EtO, gamma) |
| Benefits | Replacement for polycarbonate where BPA-free and hydrolytic stability are critical |
| Regulatory Compliance | US FDA 21 CFR §177.1830; EU Regulation (EU) No 10/2011 compliant |
| Processing Method | Injection molding, extrusion, blow molding |
Q1: What is the primary functional role of Eastman Eastar Copolyester MN021 in polymer formulations?
A: Eastar MN021 functions primarily as a non-migrating, low-volatility polyester resin modifier—commonly used to enhance melt flow, improve surface gloss, and reduce viscosity in thermoplastic polyesters and copolyester blends without compromising thermal stability or clarity.
Q2: Is Eastar MN021 compatible with PET, PBT, or other common engineering thermoplastics?
A: Yes, Eastar MN021 exhibits good compatibility with PET, PBT, and certain copolyester systems. It is designed for melt blending and typically integrates homogeneously without phase separation when processed under standard extrusion or injection molding conditions.
Q3: How does Eastar MN021 differ from conventional plasticizers or processing aids?
A: Unlike traditional small-molecule plasticizers, Eastar MN021 is a high-molecular-weight copolyester resin that remains non-migrating and non-volatile during processing and end-use. It provides rheology control and surface enhancement without leaching, blooming, or long-term volatility concerns.
Q4: What are typical dosage ranges when incorporating Eastar MN021 into a formulation?
A: Dosage depends on the base polymer system and desired performance effect, but it is generally used at low concentrations—typically ranging from 0.1% to 2% by weight—to achieve measurable improvements in processability and surface properties.
Q5: Does Eastar MN021 support regulatory compliance for food-contact applications?
A: Eastar MN021 is formulated to meet general requirements for indirect food contact in certain jurisdictions when used within approved conditions and concentration limits. End-use compliance must be verified based on final article composition, processing conditions, and applicable local regulations.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
