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Excellent low-temperature flexibility and impact resistance down to –60 °C
Outstanding UV and thermal oxidative stability for long-term outdoor performance
Good processability on standard polyolefin equipment, including extrusion and injection molding
High elasticity and recovery with balanced hardness (Shore A 65)
Compatible with polypropylene (PP) and polyethylene (PE) for use in thermoplastic vulcanizates (TPVs) and blends
Automotive interior trim components requiring soft-touch feel and durability
Weatherseals and gaskets for automotive and building applications
Flexible overmolding on rigid PP or PE substrates
Soft-grip handles for power tools, appliances, and consumer goods
Impact-modified PP compounds for structural under-hood parts
| Chemical Type | Ethylene-octene copolymer (POE) |
| Product Form | Pellets |
| Appearance | Off-white, free-flowing pellets |
| Primary Applications | PP/PE impact modification, soft-touch overmolding, TPV base polymer |
| Key Features | Low density, high elasticity, excellent compatibility with polyolefins |
| Benefits | Improved toughness without sacrificing stiffness; recyclable within polyolefin streams |
| Melt Flow Rate (190 °C / 2.16 kg) | 1.0–1.8 g/10 min |
| Density (ASTM D792) | 0.868–0.872 g/cm³ |
Q1: What is the primary function of TKS716D in polymer formulations?
A: TKS716D is a polyolefin elastomer (POE) designed primarily as a toughening agent and impact modifier for polypropylene (PP) and other polyolefin-based systems. It enhances low-temperature ductility, improves melt processability, and supports balanced stiffness-toughness performance without significantly compromising rigidity.
Q2: Is TKS716D suitable for automotive interior applications?
A: Yes — TKS716D is widely used in automotive interior components such as instrument panels, door trims, and pillar covers due to its excellent flow behavior, low odor profile, and compatibility with common PP homopolymer and copolymer matrices. It contributes to improved scratch resistance and reduced surface defects during injection molding.
Q3: How does TKS716D compare to ethylene-propylene rubber (EPR) or EPDM in PP modification?
A: Unlike traditional EPR or EPDM, TKS716D offers superior dispersion in PP melts, higher crystallinity control, and better long-term thermal stability. Its narrow molecular weight distribution and tailored comonomer content support more consistent mechanical properties and easier processing—especially in high-output extrusion and thin-wall molding operations.
Q4: What are typical dosage ranges for TKS716D in PP impact copolymers?
A: Dosage depends on the target performance balance, but TKS716D is typically used at low concentrations—generally ranging from 0.1% to 2% by weight—when added as a minor modifier to enhance impact strength. For full elastomeric blends (e.g., TPOs), it may constitute 15–35% of the total formulation, depending on end-use requirements.
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