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Two new HSBCs for potential medical use

von Dr. Dirk Kilian, Shiro Kishii, Yosuke Jogo, Kenji Shachi

Based on a long-term research experience in hydrogenated elastomeric block copolymer plastics and in vinyl-polydiene soft block manufacturing, Kuraray has developed two new materials. Both show superior properties and have high potential for medical applications. Due to its glass transition temperature Tg near room temperature the new high molecular weight Hybrar grade has high vibration damping properties. It combines oil absorption and good miscibility with polypropylene with oxygen barrier properties.

Within this article key parameters of this grade are presented. Moreover, a compounding concept of this material is described. The second new material belongs to the Septon series and is designed for improved gel stability and resilience. Because polyolefinic-based viscoelastic gels are widely used as cushion materials the processing has special needs in flow and dynamics. We will present key properties of this material together with processing instructions and a comparison to other materials.

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