Resins: Copolymer offers better mechanical properties

A new grade of SEPTON hydrogenated styrenic block copolymer from SEPTON Company of America is said to offer better mechanical properties than pervious versions of SEBS. SEPTON 4077 is an “SEEPS” polymer. Joined on either end by a polystyrene block, the unique midblock structure of SEEPS, a copolymer-like amorphous ethylene propylene rubber, allows for higher oil loadings and reduced oil migration when compounded with other resins such as polypropylene. This material is compounded on traditional plastic processing equipment such as twin screw extruders, and processed by injection molding equipment and extrusion.

SEPTON Company of America 281-909-5850

High-impact strength products benefit from new compound

Cabot has introduced a new HDPE-based conductive compound for blow-molded products that require high impact strength as well as permanent protection against electrostatic discharge (ESD). Typical applications for the new compound, CABELEC 4730, are drums, jerry cans, and other containers for the transport of dangerous materials. The combination of conductivity and particularly good impact strength (57KJ/m2) has been achieved by controlled compounding of a selected grade of carbon black in a specially designed HDPE-based formulation. Conventional blow-molding equipment can be used, but low shear conditions are recommended in order to maintain maximum conductivity in the finished parts.

Cabot Canada Ltd. 770-394-3296

Stainless-steel compounds from any base

Achieving an industry first, LNP Engineering Plastics announced their stainless-steel, fibre-filled compounds for electrostatic discharge (ESD) applications can now be made in virtually any base polymer, including PEEK, PPS, and other high-temperature resins. The new stainless-steel, fibre-filled compounds are marketed under the Stat-Kon brand.

Potential applications include hard disk drive components, and applications in which FDA compliance may be required.

LNP Engineering Plastics Inc. 800-532-2LNP

PET with stand tunnel pasteurizing

KoSa 2202, a new PET packaging resin, offers superior performance in high temperature applications, better withstanding hot filling and pasteurizing processes than competitive PET resins. KoSa 2202 allows for greater finish stability, lighter bottles and higher-processing temperatures. In beer, for example, the stability provided by the resin allows tunnel pasteurization directly in lightweight PET bottles. In heat-set, hot-fill applications, such as nutritional beverages and foods, KoSa 2202 resin allows for higher filling temperatures, faster production rates and more storage flexibility.

KoSa 704-586-7501