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Excellent low-temperature flexibility and impact resistance down to –50 °C
Outstanding melt processability for high-speed extrusion and injection molding
Superior compatibility with polyolefins (e.g., PP, PE) enabling homogeneous blending
High elasticity and reversible deformation recovery under repeated stress
Good thermal stability and long-term aging resistance in demanding environments
Automotive interior trim components (dashboards, door panels, soft-touch overmolding)
Toughened polypropylene (PP) compounds for structural automotive parts
Flexible packaging films requiring sealability and puncture resistance
Medical tubing and elastomeric closures requiring biocompatibility support
Consumer electronics protective cases and gasketing materials
| Chemical Type | Ethylene–octene copolymer (POE) |
| Product Form | Pellets |
| Appearance | Off-white, free-flowing cylindrical pellets |
| Melt Flow Rate (MFR, 230 °C/2.16 kg) | 1.0–2.0 g/10 min |
| Density (ASTM D792) | 0.868–0.872 g/cm³ |
| Octene Content | Approx. 20 wt% |
| Key Features | Elastomeric, thermoplastic, non-crosslinked |
| Primary Applications | Polyolefin toughening, soft-touch overmolding, flexible film blends |
Q1: What is the primary function of TAFMER DF710 in polymer blends and compounds?
A: TAFMER DF710 is an ethylene-octene polyolefin elastomer (POE) designed primarily as a compatibilizer and impact modifier. It enhances interfacial adhesion between immiscible polymers—such as polypropylene and engineering plastics—and improves toughness, flexibility, and low-temperature performance without significantly compromising stiffness or processability.
Q2: Is TAFMER DF710 suitable for use in food-contact applications?
A: TAFMER DF710 is not pre-approved for direct food contact under major global regulatory frameworks. Its suitability for food-contact applications depends on final formulation, processing conditions, and compliance verification by the end-user through appropriate migration testing and regulatory assessment. Mitsui Chemicals recommends consulting local regulatory authorities and conducting application-specific evaluations before use in such contexts.
Q3: How does TAFMER DF710 compare to other POEs in terms of melt flow and processing behavior?
A: TAFMER DF710 exhibits a balanced melt viscosity profile—lower than many high-molecular-weight POEs but higher than ultra-low-viscosity grades—making it well-suited for conventional extrusion and injection molding processes. It offers good melt strength and thermal stability during processing, with minimal die swell or sag, especially when blended with polypropylene-based systems.
Q4: Can TAFMER DF710 be used as a sole matrix resin, or is it intended only as an additive?
A: While TAFMER DF710 possesses elastomeric properties and can be processed as a standalone material in certain flexible applications, it is most commonly employed as a functional additive—typically at low concentrations—to modify mechanical performance, improve impact resistance, or enable thermoplastic elastomer (TPE) formulations. Its use as a primary matrix is application-specific and generally requires careful evaluation of end-use requirements.
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