HYBRAR™
Kuraray Elastomers / HYBRAR™
HYBRAR™
High vinyl styrenic thermoplastic elastomer
About HYBRAR™
HYBRAR™ is a co-polymer type with polystyrene on the ends and a vinyl-rich polydiene in the middle section. It’s known for absorbing vibrations and shocks very well. HYBRAR™ can be shaped into many forms, like films and tubes, and can be injection molded, making it versatile in manufacturing.
Products made with HYBRAR™ don’t require a plasticizer, unlike those made with flexible PVC, which lessens the environmental impact across the entire supply chain. This highly flexible styrene block copolymer, HYBRAR™, can be formed into numerous shapes, such as films and tubes, and is suitable for injection molding.
Industries Used
HYBRAR™ products come in both hydrogenated and non-hydrogenated versions. The hydrogenated versions of HYBRAR™ mix very well with polypropylene, creating a notably clear and transparent blend.
Offering a transparent, flexible alternative for medical applications.
Providing clarity and compatibility for diverse thermoplastic gels.
Enhancing adhesives with strong, versatile bonding solutions.
Improving flexibility and comfort in personal care items.
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Standard grades and properties
Non-hydrogenated grades
| Grade | Type | Styrene content | Tg | MFR | Solution viscosity (Toluene solution 30ºC) | Physical form | Hardness (Type A) | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 190ºC, 2.16 kg (g/10min) | 230ºC, 2.16kg (g/10min) | 15wt% (mPa•s) | 20wt% (mPa•s) | 30wt% (mPa•s) | ||||||
| 5125 | Vinyl-bond rich SIS | 20 | -13 | 4 | – | – | 100 | 650 | Pellet | 60 |
| 5127 | Vinyl-bond rich SIS | 20 | 8 | 5 | – | – | – | 540 | Pellet | 84 |
Hydrogenated grades
| Grade | Type | Styrene content | Tg | MFR | Solution viscosity (Toluene solution 30ºC) | Physical form | Hardness (Type A) | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 190ºC, 2.16 kg (g/10min) | 230ºC, 2.16kg (g/10min) | 15wt% (mPa•s) | 20wt% (mPa•s) | 30wt% (mPa•s) | ||||||
| 7125F | Vinyl-bond rich SEPS | 20 | -15 | 0.7 | 4 | – | 55 | 350 | Pellet | 64 |
| 7311F | Vinyl-bond rich SEEPS | 12 | -32 | 0.5 | 2 | 90 | 240 | – | Pellet | 41 |
Applications
Medical parts (films, sheets, tubes)
Automotive parts
Pressure-sensitive adhesives, coating agents, sealing materials
Household appliances
Sporting goods
Damping and noise absorbing components
Extrusion molded products
Flooring
Shoe components
Soft touch goods
Foam damping materials
Film & Packaging
Key Characteristics
- Robust Damping Performance: HYBRAR™ showcases strong damping (vibration absorption) performance, especially at room temperature, and works well with materials like polyolefin and polystyrene, providing versatile usage in various products.
- Cross-Linking Capability: HYBRAR™ can be cross-linked much like rubber, providing additional flexibility and adaptability in its application across different manufacturing scenarios.
- Rubber-Like Elasticity: It exhibits elasticity similar to vulcanized rubber, offering a balance of flexibility and strength in products where resilience is key.
- Weather and Heat Resistance: HYBRAR™ stands out for its impressive resistance to various weather conditions and heat, ensuring durability and longevity in products exposed to harsh environments.
- Soft Compound Without Plasticizing Agent: It can be used as a soft compound without a plasticizing agent, offering a safer and more environmentally friendly option in various applications.
- Superior Transparency with 7000 Series: The hydrogenated grade, specifically the 7000 series, offers excellent transparency when blended with polypropylene, providing aesthetic and functional benefits in product design.
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