Super-strong polymer introduced by MPT
Mississippi Polymer Technologies Inc., a 4-year-old company in Bay St. Louis, Miss., has introduced its first product: a super-strong, very stiff ``self-reinforcing polymer'' called Parmax 1201.
Parmax 1201, the first in the Parmax 1200 family of materials, is based on a rigid-rod paraphenylene copolymer. The 1201 version can be processed by compression molding, but the company said it has developmental samples of extrusion and coating grades of Parmax. MPT is working on grades for extrusion, injection molding and other types of plastics processing.
MPT's Parmax self-reinforcing polymer technology means the material is 200-800 percent stronger and stiffer than other thermoplastics without adding fibers, according to President Robert Gagne. The polymer is noncombustible, maintains mechanical properties at cryogenic temperatures and is solvent-, scratch- and abrasion-resistant.
Parts compression molded from the polymer can be machined like aluminum, so stock shapes of Parmax 1201 can be made into bearings, gears, flanges and rubes.
MPT introduced Parmax 1201 at SPE-Antec in Chicago recently.
Many of MPT's early commercial activity has focused on military projects. In January, the U.S. Navy gave the company a $750,000 research contract to use Parmax as an insulating material on ramjet combustion engines, which create tremendous thrust but are limited by the high operating temperatures.
Tel. (228) 533-0825, fax (228) 533-0805, e-mail [email protected]
Diamond gate cuts die-change time
Tallmadge, Ohio-based Diamond America Corp. introduced a twin-lever gate that the company claims can reduce die-change time by 75 percent or more.
The quick-opening gate can be fitted on any size extruder. It is available on new extruders from Diamond America, and it can be retrofitted onto most brands of existing extruders.
The unit features two clamshell halves mounted on levers. When opened, the levers move the halves out from under the barrel so resin being purged out of the barrel does not collect in the clamshells. The two clamshells are self-centering when drawn together, for a positive seal.
Since the two lever arms support the gate halves, no heavy lifting is required by the operator. The twin-lever gate can be fitted with a die support arm when required.
Both sides of the gate are electrically heated, to minimize start-up time and improve process stability.
Tel. (888) 349-9385, fax (330) 633-9557, e-mail [email protected]
Extruder designed for medical applications
American Leistritz Extruder Corp. said its GMP series of twin-screw extruders is designed for medical device and pharmaceutical applications, featuring precise extrusion and controls to meet Food and Drug Administration validation requirements.
Screws, barrels and other parts that come into contact with the plastic are made from metals formulations that are not reactive, additive or absorptive with the product. Screws and barrels are available in modular or one-piece designs, depending on the application and cleaning requirements.
Other features include: stainless-steel parts for easy cleaning; quick-release couplings for cooling and heating components; FDA-approved paints, gear oil and lubricants; full documentation of controllers, thermocouples, transducers and indicators; and validated computer controls.
Typically, the GMP extruder is used for compounding and devolatization for medical devices, wet granulates, transdermal/dissolvable films and other solid-dosage forms.
Tel. (908) 685-2333, ext. 616, e-mail [email protected]
Colortronic debuts compact dryers
Colortronic Inc. of Runnemede, N.J., has announced two compact dryers, the CTT25 and CTT50, that are among the smallest desiccant dryers on the market.
The dryers use the Hi-Core design from parent company ACS Group of Wood Dale, Ill. The heating elements are placed directly inside the core of the desiccant canisters. The design gives faster regeneration and cooling of the desiccant, according to Colortronic.
The new dryers have a standard temperature range of 180-250°F and a duel-bed design, allowing continuous operation.
The CTT25 and CTT50 are the smallest dryers in Colortronics CTT series of dehumidifying dryers. The company also makes blenders and feeders.
Tel. (856) 312-9600, fax (856) 312-9696, e-mail [email protected]
Kortec takes control of Altanium controller
Moldflow Corp. has delivered a 210-zone Altanium hot-runner process control to Kortec Inc., the supplier of coinjection systems to make multilayer preforms.
The system also includes Moldflow's new Matrix operator interface.
Wayland, Mass.-based Moldflow, obtained the Altanium hot-runner control when it purchased American MSI Corp. in January.
Tim Triplett, Moldflow's executive vice president and general manager of manufacturing solutions, called the Kortec business ``a major industry milestone.''
``Coinjection for multilayer preforms requires exceptional melt control and process stability, especially when filling 144 cavities in one shot,'' Triplett said.
Altanium can support up to 384 zones. The modular control units can be used free-standing, mounted on the mold or alongside, behind or inside the injection press. The Matrix control panel gives access to temperature control, monitoring and alarm and diagnostic functions.
Kortec is based in Beverly, Mass.
Tel. (508) 358-5848, fax (508) 358-5868, e-mail [email protected] flow.com.
General Plastex offers new screw polisher
General Plastex Inc., which makes screws and barrels in Barberton, Ohio, has introduced a portable screw-polishing system for customers to use in their plants.
The new method replaces the traditional way that can damage the screw surface. General Plastex said it will not damage screws. It also is faster than the older methods of screw polishing.
The system is shipped with coarse, medium and fine polishing belts, a magnetic work light, accessories, an employee face shield and an air-powered die grinder with Scotch Bright wheels. A screw-measuring work sheet and a flight bridge for taking screw measurements also are included.
Tel. (800) 777-4719, fax (330) 745-6939.
Plascom Plastic Machinery Sales & Service Inc. of North York, Ontario, is now selling Gloucester-CMG's granulators in the Canadian market. Plascom also will provide training and implementation strategies for the reclaim systems made by Gloucester-CMG in Newport, N.H. ... Process Control Corp. now has up to six hoppers, with a throughput rate of up to 750 pounds per hour.