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Excellent abrasion and tear resistance for demanding mechanical environments.
Good low-temperature flexibility down to –30 °C without significant loss of elasticity.
High melt processability suitable for extrusion, injection molding, and blow molding.
Good resistance to oils, greases, and non-polar solvents.
Transparent to translucent appearance with inherent UV stability for outdoor applications.
Automotive interior trim components including instrument panel overlays and door panels.
Industrial hoses and pneumatic tubing requiring flexibility and pressure resilience.
Consumer electronics protective casings and flexible cable jacketing.
Medical device tubing and non-implantable fluid-handling components.
Sports equipment parts such as grips, gaskets, and vibration-damping elements.
| Chemical Type | Aliphatic polyester-based thermoplastic polyurethane (TPU) |
| Product Form | Natural pellets, free-flowing, dry-blend ready |
| Appearance | Translucent to slightly hazy, uniform granules |
| Shore A Hardness | 45–50 |
| Melt Flow Index (230 °C / 2.16 kg) | 22 g/10 min |
| Density | 1.18–1.20 g/cm³ |
| Processing Temperature Range | 170–210 °C |
| Key Features | Good hydrolysis resistance, low compression set, recyclable |
Q1: What is the primary functional role of Merquinsa 45-50/22 in TPU formulations?
A: Merquinsa 45-50/22 functions as a high-performance thermoplastic polyurethane elastomer modifier, primarily used to enhance melt processability, improve surface finish, and increase elasticity and low-temperature flexibility in compounded TPU systems.
Q2: Is Merquinsa 45-50/22 compatible with standard aromatic and aliphatic TPU grades?
A: Yes — it exhibits broad compatibility with both aromatic and aliphatic TPU resins, enabling homogeneous blending during extrusion or injection molding without requiring specialized compatibilizers or reactive additives.
Q3: What processing methods are recommended for incorporating Merquinsa 45-50/22 into TPU compounds?
A: It is typically incorporated via twin-screw extrusion under standard TPU processing conditions. Pre-drying is recommended, and residence time should be minimized to preserve thermal stability and avoid degradation of the elastomeric phase.
Q4: How does Merquinsa 45-50/22 influence the mechanical properties of finished TPU parts?
A: It generally enhances elongation at break and resilience while maintaining good tensile strength. Impact resistance and dynamic fatigue performance are also improved, particularly in thin-walled or flex-critical applications such as seals, gaskets, and wearable components.
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