Scrap lowers cost of Lucent PC/ABS
Lucent Polymers Inc. has developed a post-industrial blend of polycarbonate and ABS that is said is a low-cost alternative to ABS and high-impact polystyrene.
Ecollent PC/ABS 406E contains a polyester flow modifier. It offers about 11 percent cycle-time improvement. Compared with conventional ABS and HIPS, it provides higher heat distortion, better ductility and 30-40 percent lower pricing, according to the Evansville, Ind., firm.
The blend is available in utility black and medium to dark gray. A typical PC-to-ABS ratio is 60-40 but it can be varied depending on the application.
Tel. 812-421-2216, fax 812-422-6649, e-mail [email protected] mers.com.
Polyscope develops Xiran SMA additives
Polyscope Polymers BV is developing applications for styrene maleic anhydride compounds as a performance additive in amorphous thermoplastics.
The Geleen, Netherlands-based company said its Xiran SMA additives improve thermal performance, surface polarity and miscibility with other resins. It can boost performance and value of recycled and virgin resins such as ABS and polymethyl methacrylate. It is possible to improve the processing window and make it easier to paint, print on or plate such polymers, Polyscope said.
Xiran SMA's ratio of styrene-to-maleic anhydride can be adjusted per application.
The block copolymer is miscible in a range of polymers. It has a high glass transition temperature of 293°- 347° F, allowing it to increase thermal performance of some resins. With better thermal performance comes better dimensional stablity and tighter tolerances, Polyscope said.
The firm has sales and marketing offices in Detroit and Shanghai.
Tel. 248-684-6204 or 31-46-4763-989, e-mail [email protected]
New Fortron targets thin-wall molding
Ticona has introduced a mineral/glass-filled polyphenylene sulfide that it claims has exceptional flow properties.
Fortron 6162A7 is designed for appliance, industrial and electrical/electronics customers that need high-temperature-resistant, thin-wall components. It has 40 percent improved flow compared with Fortron 6165A6. As well, it is rated UL 94 V-0 for wall thicknesses down to 0.8 millimeters. Its comparative tracking index is greater than or equal to 175 volts.
Fortron 6162A7 allows molding of larger-diameter parts in a multicavity tool. It offers the same shrinkage properties as the 6165A6 grade, according to the Florence, Ky., company.
Tel. 800-833-4882 or 859-372-3244, e-mail [email protected]
Paratherm AC uses hot-oil cleaning
Paratherm Corp. of West Conshohocken, Pa., offers an AC-brand hot-oil system cleaning liquid suitable for large, continuously operated machines using synthetic or organic heat-transfer fluids such as Solutia Inc.'s Therminol 66, Dow Chemical Co.'s Dowtherm RP and Paratherm's HR.
The plastics industry uses heat-transfer products based on this chemistry in molding, extrusion, press heating, line tracing, roll coating and other heating applications.
While the new Paratherm AC product circulates, and without requiring machine downtime, the cleaner can restore system performance, dissolving and suspending sludge deposits that reduce flow and heat transfer.
The maximum recommended use temperature is 550° F.
Paratherm began developing the liquid in May and introduced it commercially in August.
Currently, the Paratherm AC line has nine heat-transfer fluids and three cleaning liquids. In addition to plastics-related functions, Paratherm serves the chemical and food-processing industries.
Tel. 610-941-4900, fax 610-941-9191, e-mail [email protected]
Masterbatch aids recycled content
Ampacet Corp. has debuted a high-efficiency antioxidant masterbatch that protects reprocessed and recycled polyolefins from degradation during processing.
The new masterbatch allows blown and cast film producers to use more recycled content without adversely affecting aesthetic and physical properties, the company said. It is especially useful in clear packaging films where cost savings are driving the use of more recycled resin, but where gels are not tolerated.
The product is also useful in repelletizing operations where it restores thermo-oxidative stability, allowing recycled resins to perform more like virgin resin, according to the company. It is approved for food-contact uses.
Let-down ratios of 0.5 percent to 1 percent are typical for the masterbatch, said Tarrytown, N.Y.-based Ampacet. With blown film, a 0.5 percent level reduces gels and allows the use of up to 10 percent scrap. In one case, a 1 percent level gave a cast film processor the ability to boost the use of repelletized material from less than 5 percent to greater than 15 percent in a critical application, according to Ampacet.
Tel. 914-631-6600, fax 914-333-1678, e-mail [email protected] ampacet.com.
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