All TPEs applicable to a particular end-use sector will now be grouped under a single brand, regardless of how widely the compounds differ in terms of polymer chemistry. Teknor Apex for the first time can produce compounds spanning the entire range of these chemistries at its plants in Belgium and the UK. Included are many Teknor Apex TPEs developed in the USA and previously unavailable in Europe. The Sarlink brand once consisted exclusively of TPVs but has been expanded to include styrenic and olefinic blends-until now produced by Teknor Apex only in the USA. "Today Sarlink represents a complete solution for the transportation market, said Ger Vroomen, senior automotive market manager. "For designers of automotive sealing systems, in particular, Teknor Apex can provide a TPV or styrenic compound as an alternative to EPDM rubber, depending on customer requirements, and it is the only supplier in a position to do so. Similarly, the company's Elexar, Medalist, and Monprene brands now include all TPE types designed for use in electrical/electronic, medical, and consumer-product applications, respectively. [image_0] "Unlike TPE compounders that focus on a single chemistry and push that product into the marketplace, Teknor Apex uses a polymer-neutral' approach, recommending the compound that is precisely best one for the target application, said Stef Hordijk, strategic market manager. "The breadth of our product portfolio also enables customers to purchase multiple compounds from Teknor Apex, obtaining the logistical advantages of single-sourcing as well as access to our company's decades of experience in transportation, consumer and industrial, electrical and electronic, medical, and wire and cable markets. The company's TPE division includes today four polymer families based on differing chemistries: Family Chemistry Characteristics Styrene block copolymers (SBC) SBS, SEBS, SEEPS Elastic, flexible, toughCrystal clear to opaqueSilken to tactile or dry-to-touch feel Wide range of hardness (soft gel to 65 Shore D), flex modulus, and elongationScuff- and mar-resistant formulations available Olefinics Blends of PP or PE with olefinic TPE or olefin block copolymer (OBC) Balance of cost and performance Rubber-like flexibility Tear strengthResistance to heat aging and ozone Thermoplastic vulcanisates (TPVs) Crosslinked rubbers or elastomers in a thermoplastic matrix Rubber-like appearance and resilienceLow compression set Heat resistance Chemical resistanceHigh tear strength Bondable TPEs TPEs or TPVs for over-moulding or coextrusion onto rigid substrates Bondability to such substrates as polyolefins, PS, HIPS, ABS, PC, PC/ABS alloy, nylon, PBT, and COPE.
The newly restructured TPE brands from Teknor Apex include: ? Elexar for E+E applications These compounds are used for insulation and jacketing of power, communications, and data cable, and for moulded plugs and connectors. Formulations are available with brittle points as low as -100°C, and continuous operating temperatures UL rated for 105°C and 125°C. A series of flame retardant formulations provides RoHS compliance, UL-V0 flame rating, and good performance over a wide range of conditions. ? Medalist for medical applications Medalist TPEs are pre-compliant with regulations and tested not only for physical properties but for fabrication, handling, and other characteristics critical in everyday clinical practice. Compounds range from a gel-like 25 Shore 00 to a ductile 85 Shore D. Clear, translucent, and opaque grades are available for injection and blow moulding, multi-component moulding, calendering, and extrusion of tubing, profiles, films, and wire coating. ? Monprene for consumer applications Developed in the U.S. the Monprene range finds applications in a vast array of consumer products such as personal care items, toys, writing instruments, sporting goods, housewares, and wheels and casters. Compounds range from super-soft to hard and tough, from water clear to opaque, and from dry-to-the-touch to high-tack / resilient. ? Sarlink for transportation applicationsWhile automotive manufacturers are well familiar with TPVs under the Sarlink brand, this range now includes the other TPE types mentioned above.Teknor Apex at K 2013
Hall 6, booth C54-3