Materials News

Unfilled TPI and improved LLDPE from Sabic

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With its high glass transition temperature, the Extem UH 1019 resin is also said to be the first unfilled material to achieve a continuous use temperature rating of 260ºC.

Designed for automotive, aerospace, semiconductor, electrical and chemical applications, the material has a better mechanical performance compared to PEEK, says the company. The material can also be used to replace metals or ceramics in applications where no previous resins were available. In contrast, the resin delivers eight times better stiffness as well as superior creep and extreme low thermal expansion performance. These properties enable the design of thin walls and complex shapes with high dimensional stability, as well as the potential for weight-out, says Sabic.

The material can be injection moulded or extruded. Potential applications include wire and cable insulation, connectors, semiconductor plasma chamber components, high heat film, bearing cages, gears, membranes, stock shapes and composites.

Meanwhile, its LLDPE 430BE is said to feature outstanding quality consistency and mechanical properties with improved stiffness, thereby increasing line speeds considerably. The company says the combination of properties allows for energy and material savings, which supports converters to improve their cost efficiency as well as their sustainability performance. The resin is said to be a "very pure" grade with a controlled low gel level, making for a reliable and consistent product ensuring smooth processing.

It is suited for use in differential cling stretch film applications as a low cling outerlayer. Usage of the grade as a side-encapsulator combined with Sabic's LLDPE 318BE and 6318BE grade is said to allow for cast film line speeds of up to 1,000 m/minute. The grade can also be used for hygienic cast film applications and thermoforming sheets.