Microcellular Polyurethane
Toral has a record as a system for shoe soles in Japan by combining of polyol component HT+SM type/isocyanate component F type to to blend and mold shoe soles. The system is a urethane molding system by water foaming and the lineup features ether-based and ester-based systems for each hardness and density.
- Excellent continuous productivity (small article molding)
- Possess a stable microcellular structure
- Capable of accommodating static control formulations with static blends
In addition to shoe soles, aiming to expand applications into the office equipment field.
Molding Flow
Perform molding by blending two liquids,
polyol component + catalyst/polyisocyanate component.
Cell Photograph
Possess a fine microcellular structure, capable being deployed in
industrial shock absorbing materials, damping materials, and cushioning materials.
Product Lineup
DIC features a product lineup by composition including ester-based or ether-based. Contact us for details.
| Item | Ester-based PU For women's shoes |
Ether-based PU For causal men's shoes |
Ether-based PU For inners |
|---|---|---|---|
| Molding conditions | |||
| Resin temperature (A/B) (°C) | 35/35 | 45/45 | 30/30 |
| Mold temperature (°C) | 40-50 | 40-50 | 40-50 |
| Demold time (minutes) | 5-6 | 3-4 | 5-6 |
| Free foam density (g/cm3) | 0.24-0.27 | 0.29-0.31 | 0.15-0.17 |
| Physical properties | |||
| Molded product density (g/cm3) | 0.45-0.50 | 0.50-0.55 | 0.30-0.35 |
| Hardness (Asker C) | 68-70 | 65-67 | 33-35 |
| Tensile strength (MPa) | 5.8-6.3 | 3.5-4.0 | 1.0-1.2 |
| Elongation (%) | 450-500 | 450-500 | 200-220 |
| Tear strength (KN/m) | 23-25 | 18-20 | 4-5 |
| DeMattia flex (notch inserted) | Cleared 100,000 times | Cleared 100,000 times | Cleared 100,000 times |
 |
|
|---|---|
 |
 |
