Cumberland unveils water-ring pelletizer
Cumberland Engineering said its water-ring pelletizer is easy to start up and run, with no strands to handle and no concerns about water-flow timing.
The pelletizer uses an advanced cutter-head design, which evenly distributes molten polymer to the die to produce continuous, uniform pellets.
The blades can be accessed easily.
Three models are available, with throughputs ranging from 300-5,000 pounds an hour.
The water-ring pelletizer uses a slurry system, which controls off-dryer pellet temperature.
Cumberland Engineering is based in South Attleboro, Mass.
Tel. (508) 399-6400, fax (508) 399-6653.
PSI-Polymer offering 8'' screen changer
PSI-Polymer Systems Inc. of Hickory, N.C., has introduced an 8-inch hydraulic screen changer for large extrusion applications.
Because of its large filtration area, the HSC-80 also can be used on smaller extruders with diameters of 41/2 inches or 6 inches running high levels of recycled material.
Tel. (828) 345-6264, fax (828) 345-6265, e-mail [email protected]
Perstorp develops antimicrobial urea
Perstorp AB has developed urea molding compounds that it said have exceptional antimicrobial properties.
The Perstorp, Sweden, company claims its Polygiene compounds kill the Severe Acute Respiratory Syndrome coronavirus on contact, as well as a range of bacteria, yeasts and molds.
The company said the materials are suited to molding household electrical devices such as switch plates, handrails, pens and other products where consumers might come into contact with microbes.
Perstorp said Polygiene technology builds on the inherent antimicrobial activity of its urea resins for injection and compression molding.
Resins retain their strength, chemical resistance, flame retardance and other properties when compounded with Polygiene, the firm said.
Perstorp Compounds Inc., the company's U.S. division, is in Florence, Mass.
Tel. (413) 584-2472, fax (413) 586-4089.
Microblend system can run 4 additives
Colortronic Inc. of Runnemede, N.J., is marketing the Microblend, a volumetric coloring system typically used with small injection presses, with clamping forces up to 100 tons.
Microblend can run up to four additives, which can be refilled manually or automatically.
The unit uses auger feeding technology, which Colortonic said is more accurate than competing designs.
Hoppers are made of electropolished stainless steel, with stainless-steel screws and jacket tubes. A sight glass on the hopper allows easy monitoring of the material.
Tel. (856) 312-9600, fax (856) 312-9696, e-mail [email protected] ic.com.
ExxonMobil offering low-gel LLDPE grades
ExxonMobil Chemical Co. developed two low-gel grades of its Exceed metallocene-catalyzed linear low density polyethylene.
Aimed at lamination and converter film, Exceed 1018LC and 1018LE are designed to process better, to show improved optical properties and to offer improved sealing and tear resistance.
The new products are special versions of the 1018CA and 1018EB grades.
The Houston-based company provides actual gel values for resins going to sensitive applications.
ExxonMobil measures gel content with an optical camera system and provides the data in the resin's certificate of analysis.
Tel. (281) 870-6000, fax (281) 870-6661.
Flex-Z aids release in fiberglass molds
Zyvax Inc. has introduced a release agent for fiberglass molds that allows a processor to fine-tune the amount of release action in different parts of the mold.
Zyvax offers its Flex-Z in six different formulations, each offering a different release activity.
The color-coded products provide a spectrum of release properties, from maximum hold to maximum slip.
In complex molds, more than one Flex-Z formulation can be used to address problem areas in the mold.
The company said one Flex-Z grade can be applied to increase the bond strength on a mold's large female features to prevent warpage or pre-release. In the same mold, another grade of Flex-Z can boost slip on male and textured surfaces to prevent a stuck part.
Zyvax claims Flex-Z is suited to open and closed molding processes, including wet layup, resin transfer molding and infusion.
The product reduces streaking, styrene buildup and gel-coat sagging on vertical surfaces, the company said.
The company has offices in Valencia, Spain, and Boca Raton, Fla.
Tel. (706) 698-4405, fax (706) 635-8103, e-mail [email protected]
Limestone company now making CaC03
A North Carolina limestone company has entered the high-brightness calcium carbonate market.
The Glacier Stone division of Fletcher Limestone offers the white mineral in fine particle sizes and in coarser grades.
The company built a warehouse at its Fletcher, N.C., manufacturing site and invested in quality-control equipment to ensure availability and consistent quality, the firm recently announced.
Tel. (828) 687-1100, fax (828) 684-5153, e-mail [email protected]