Color concentrates impart a soft translucent "frosted" effect to polypropylene (PP) products. Based on heavy metal-free pigments in a PP carrier resin, these additions to the TEKlite(reg) line of concentrates produce the frosted effect uniformly throughout the molded or extruded product. Standard TEKlite frosted-effect colors include light blue and green, lime, dark green, yellow, and red. The colors are supplied as nominal 0.125- or 0.0625-inch pellets or beads and can be used with homopolymer or copolymer PP resins in injection molding.
Teknor Color Co., 505 Central Ave., Pawtucket, RI 02861.
Although plastics make up only about 11% of all US municipal solid waste, many are actually more energy-dense than coal. Converting these non-recycled plastics into energy with existing technologies could reduce US coal consumption, as well as boost domestic energy reserves, says a new study.
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