| About |
|---|
| KUMHO KTR ® 655 polymer is a linear block copolymer based on styrene and butadiene with bound styrene of 38.0% mass. It is supplied in two physical forms, identified as follows in the grade nomenclature: KTR 655 supplied as porous pellets KTR 655P supplied as dense pellets&& |
| Product Description | |
|---|---|
| Supplier | Kumho Petrochemical |
| Generic | SBS |
| Material Status | Commercial: Active |
| Features | Block Copolymer |
| Availabilitys | North America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 0.948 | g/cm³ | |
| Melt Flow Rate | |||
| 190℃，5.0kg | 12 | g/10min | |
| styrene content | 38.0 | wt% | |
| Ash Content | 0.3 | % | |
| Volatiles | 0.50 | wt% | |
| Solution viscosity | |||
| 25℃ | 560 | mPa·s | |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shore A, 5 seconds | 85 |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | |||
| fracture | 26.5 | MPa | |
| 300% strain | 3.73 | MPa | |
| Tensile strain | |||
| fracture | 860 | % |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 25 wt% in toluene |
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