02/04/2010

www.plasticker.de

Ultrapolymers: Catalloy blends boost performance of films, containers and moulded parts

With recently introduced PP blends, made by LyondellBasell's proprietary Catalloy technology and combining the advantages of polyolefines with those of elastomers, Ultrapolymers Deutschland can now offer its customers new opportunities for the cost-efficient production of films, containers, and moulded parts. The range of these blends covers three soft grades, Softell 7413 XEP, Softell CA 7469 A and Adflex 7492 XCP, with Shore A values up to 75, characterized by their soft touch, low gloss and high-level mechanical properties, plus Hifax CA 7378 A, a specially modified low density, low warpage copolymer, well suited to injection moulded parts for highly demanding applications.

• Softell 7413 XEP is a development grade featuring flexibility and toughness on a level commonly only reached by plastomers or traditional elastomers. Thanks to its high flow (MFR = 2.8 g/10 min at 230°C/2.16 kg), typical applications include extruded profiles, sheets and cable coatings as well as calendered, extrusion blow moulded and injection moulded products with low hardness (Shore A 76), high toughness and high environmental stress crack resistance (ESCR). It can be easily processed on conventional PE-LD or PE-LLD blown film lines. Softell 7413 XEP is well suited for compounding applications and shows high compatibility to fillers and flame retardant agencies as well as to other polyolefines. It does not contain any slip or anti-block agents.

• Softell CA 7469 A combines softness (Shore A 86), flexibility, low temperature toughness, low gloss, and dry touch characteristics. Used as a cost efficient and light-weight soft building block in TPE and TPV compounds, this material opens up possibilities to substitute more expensive thermoplastic elastomers like SEBS, depending on the specific requirements. Application areas cover automotive interior skins, wire and cable coatings, soft extruded profiles and sheets as well as 2K-applications. Softell CA 7469 A is peroxide, silane or radiation cross-linkable, and can thus also be used for the manufacturing of rugged semi-finished products or parts.

• Adflex 7492 XCP has been developed to produce highly transparent blown film products, which provide toughness, puncture and tear resistance on a metallocene PE-LLD level, clearly outperforming common PP-based blown film products. What's more, this innovative, highly modified PP grade's easy processing characteristics allow the down-gauging of film thicknesses and reduced manufacturing costs. With a possible reduction of film thickness to 50 ìm and a haze value of 13 %, Adflex 7492 XCP is a new industry benchmark for highly modified PP grades. The material is also well suited for the modification of PE-LD und PE-LLD. Typical applications of mono- and multilayer-films, where Adflex 7492 XCP is used either alone or as a blending component in the core layer, range from food packaging to industry and agricultural applications. Thermoformers take advantage of the material's wide processing window.

• Hifax CA 7378 A is a tough injection moulding grade, providing very low shrinkage of only 0.9 % combined with high stiffness and easy processing. This makes this heterophasic PP copolymer a first choice for demanding applications, e. g. for automotive interior and exterior components like dashboards or bumpers, where high dimensional stability is crucial. Compared to products commonly used for such applications like talcum filled PP (with a density > 0.9 g/cm³) Hifax CA 7378 A can allow a significant weight reduction without compromising stiffness and impact resistance. Thanks to the material's low shrinkage, the same tools can be used that are intended for use with reinforced plastics.
Ultrapolymers supports its customers in tailoring filled and unfilled PP standard grades to specific application requirements, achieved by combining different Catalloy products to blends with individual toughness, shrinkage, hardness, stiffness, transparency and gloss levels.

More Information: www.ultrapolymers.de