Plastics Technology

MAY 2012

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materials nyl ether to satisfy new environmental regulations. It's offered with glass, talc, other mineral fillers, or unfilled. NEW AND IMPROVED NYLONS BASF (plasticsportal.com/usa) introduced to North America its new high-impact Ultramid Structure materials, long-fiber rein- forced nylon 6 or 66 that was recently used to produce the world's first all-plastic wheel for a concept Daimler smart car. The wheel is over 30% lighter than a standard aluminum wheel and shows potential for mass production (see Dec.'11 Starting Up). Other relatively new nylon offerings highlighted by BASF included Ultramid Endure, its high-heat nylon 66 family designed to replace metal in underhood applications, and Ultramid BG50X- Fi, an impact-modified nylon 6 developed for lawn/garden and other large, thin-walled injection molding applications that re- quire custom colors, toughness, high gloss, and UV resistance. It is said to be suitable for replacing painted PC/ABS and was chosen by a major automotive OEM for interior use due to its molded-in color, excellent weatherability, and high-gloss surface. Invista (invista.com) introduced the latest addition to its Torzen line of nylon 66 compounds. Torzen Marathon is intended to fill the gap between standard nylon 66 and higher-temperature nylons. It's said to broaden the application potential for nylon 66 to continuous use at 210 C (vs. 180 C normally), while maintain- ing a peak temperature resistance of 240-250 C. It reportedly retains more than 90% of original tensile strength after 1000 hr at 210 C, while conventional nylon 6 and 66 show about 50% retention. The new grade also offers as much as 50% higher flow. High-heat nylon 66 grades aimed at engine and electronic applications were also unveiled by Radici Group Plastics (radici- group.com/plastics), which highlighted three new additions to its Radilon line. ABV250 is a 35% glass-filled nylon 66 with heat resistance up to 210 C. It reportedly can replace PPA, PPS, and nylon 46. Radici will soon launch a next-generation family, not based on nylon 66, with heat resistance to around 230 C. Radilon A RV500 RW 339 nylon 6 and Radilon S URV nylon 66 are two new highly filled grades designed to replace metal, SMC and BMC thermoset composites, and PUR. EMS-Grivory (ems-grivory.com) showcased its expanded line of Grilamid L nylon 12, designed to replace rubber in media conveying systems. It is also now producing Grilamid 2D nylon 612, Grilamid 2S nylon 610, and Grilamid 1S nylon 1010 for tubing and connectors. A. Schulman, Inc. (aschulman.com) launched Shulamid 612 IC 4005W for industrial fluid management. It can be extruded in smooth and corrugated mono- and multi-layer tubing and has 10% higher burst pressure and 20% higher heat-resistance than nylon 12. Also new is the Schulamid HM series of high-modulus, high- strength nylon compounds, which incorporate 40% to 65% glass, carbon, or aramid fiber while maintaining high flowability and excellent surface appearance. Asahi Kasei showed off its Leona LG long-glass nylon 66 and Processability Index, 50 ELITE at 6111 Offers a Balance of Stretch, Toughness and Processability Ult Stretch, 316(%) Puncture, 320(ft lb/in3 ) CD Tear, 467(g/mil) MD Tear 244(g/mil) A Competitive mLLDPE(3.5, 0.918) ELITE EPE 5230G (4.0, 09.16) ELITE at 6111 Enhanced Polyethylene (3.7, 0.912) Dow's new "post-metallocene" PE, Elite AT resins offer excellent processability and the same or better properties than mLLDPE. 66/6I for applications requiring superior fatigue and creep resis- tance, modulus greater than 20 GPa (2.9 Mpsi) with good sur- face finish, or FR grades with excellent impact strength. LOTS NEW IN TPEs BASF introduced two additions to its Elastollan TPU line. Grade 785 10HPM boasts mproved compression set at high tempera- tures, excellent surface reproducibility, and resistance to chemi- cals and fuels. Available in several hardnesses, its "feel" can range from velvety to leather-like. It was developed to meet "fail-safe" cable specs for antilock braking systems. It meets ISO 6722 Class D at 150 C vs. 125 C for typical TPUs. BASF foresees under-hood applications such as seals or hoses to re- place rubber or other TPEs. Elastollan 1185A 10HFFR is a low-smoke, halogen-free FR polyether TPU for continuous use at 150 C in tight-space auto- motive and wire and cable. It boasts excellent abrasion resis- tance, toughness, very good low-temperature flexibility, hydro- lytic stability, and fungus resistance. It is also said to be much easier to color—including true blacks, reds and greens. Lubrizol Corp. (lubrizol.com), which recently acquired Mer- quinsa of Spain, showcased new Pearlthane D11H92S and D11H95S TPUs—92 and 95 Shore A hardness, respectively— based on polycaprolactone. Designed with Merquinsa's "H" technology, they are targeted for industrial high-pressure hy- draulic seals, offering improved flow properties and high hydro- lytic resistance. Both offer low compression set at high tempera- tures and can be injection molded with extremely short cycles, the company says. Kraiburg TPE (kraiburg-tpe.com), which has specialized in styrenic TPEs, launched two new classes of specialty TPE mate- rials. One is a series of blends based on olefin block copolymers PLASTICS TECHNOLOGY MAY 2012 43 Dart, 850(g)

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