Ashley Polymers Inc.'s new polybutylene terephthalate resin has a notched Izod impact value of more than 2.5 foot-pounds per inch, according to the Brooklyn, N.Y., compounder. Ashley developed P126T as an economical alternative to long-glass-fiber resins. It offers P126T in custom colors with various levels of glass content at prices of about $2 per pound.
Tel. (718) 851-8111; fax (718) 972-3256; e-mail [email protected]; Web site http://www.-ashleypoly.com.
Arnitel grades offer flame resistance
DSM Engineering Plastics has new flame-retardant grades of Arnitel thermoplastic polyester elastomers. The two injection molding materials have Under-writers Laboratories V-O approv-al and meet German dioxin-free standards.
Arnitel PL720-S, a grade suited to hot-runner systems, has hardness of 72 Shore D. The PL460-S grade has 46 Shore D hardness. According to DSM of Evansville, Ind., each can reduce cycle time because of faster crystallization.
Tel. (800) 333-4237.
Expanded PP beads cut package weight
BASF Corp. says its new grade of expanded polypropylene beads can cut packaging weight by 50 percent compared with other rigid materials with similar im-pact resistance.
Neopolen P2024B, available in black, has nominal bulk density of 1.38 pounds per cubic foot but its molded density can range from 2.2-2.7 pounds per cubic foot. Typical properties include compressive strength of up to 35 pounds per square inch and tensile strength of up to 65 psi, according to the firm's Expanded Polypropylene Group, based in Wyandotte, Mich.
Tel. (313) 246-6750.
Berstoff product compounds faster
After two years of development, Berstorff Corp. of Char-lotte, N.C., has unveiled its ZE Ultra Torque line of compounding extruders.
The ZE Ultra Torque replaces the ZE High Torque extruders offered for the past 15 years.
Maximum screw speed for the Ultra Torque is 1,200 revolutions per minute.
Berstorff gave an output comparison of the old and new machines with a 65-millimeter screw diameter running glass-filled nylon. The standard High Torque extruder yielded a rate of 2,750 pounds an hour. The new Ultra Torque machine ran more than 4,400 pounds an hour.
``Our goal was not simply to increase torque or speed, but to optimize all of the performance characteristics of compounding extruders through a comprehensive design approach,'' said President Nelson Hopcus.
The extruder is available in sizes from 40mm to 130mm.
Innovations include a new, patented gearbox to boost torque from 600 rpm on the previous machine to 1,200 rpm and something new for Berstorff, the use of multispline screw shafts. Screw geometry has also been im-proved.
Berstorff also introduced a new modular compounding system, designed for ``drop-in'' use. Mounted on a platform are an extruder, up to three feeders, a downstream side feeder, vacuum system, dust collection system, pallet conveyors and other components.
The system is named MEPP for Modular Engineered Process Package.
Tel. (704) 523-2614; fax (704) 523-4353.
PC/PET combine in outfielders' mask
A polycarbonate/PET blend provides impact resistance and light weight in a safety mask for baseball outfielders.
Reiss Corp. of Englishtown, N.J., injection molds the 18-ounce mask at high pressure in a 72-second cycle using Makroblend DP4-1374 supplied by Bayer Corp.'s Polymers Division in Pittsburgh. The mask, designed to instill confidence in players while protecting against injury, was developed by Sports-Guard Inc. of Rich-mond, Va.
Tel. (412) 777-2000.
Film gauge smables thickness rapidly
Olson Research and Develop-ment's new thickness gauge for film and sheet can sample 1-by-2-inch web cross sections at 100 times per second, the San Diego firm claims. It also demonstrates consistent accuracy of 0.1 mils, even with ambient temperature variations of 10 F.
Olson's measurement technology relies on setting up a primary electric field to excite the web material. The gauge measures the realignment of electric charge within molecules in the web and converts it to a thickness reading.
Tel. (619) 558-6050; fax (619) 558-3725; e-mail [email protected]
OOPP gives snacks long live on the shlef
Metallized, oriented polypropylene film's high moisture barrier allows a six-month shelf life for Nabisco's Ritz Snack Mix and allows the package to maintain shape and appearance during shipping.
The snack's multilayer packaging has a middle layer of 60-gauge Torayfan PC-1 film from Toray Plastics (America) Inc. of North Kingstown, R.I.
The package also includes PET and low density polyethylene film layers. It features a reclosable zipper which is applied on-line during pouch fabrication.
Tel. (401) 294-4511; fax (401) 294-2154.