A giant PET resin plant scheduled to start up later this year in Salalah, Oman, will produce the first calendered APET sheet using melt directly from a reactor. Octal Holding & Co. (U.S. sales office in Dallas) has a proprietary technology for the short connection from the PET reactor and melt pump to the die and calendering rolls. Its direct process will eliminate the cost and heat history of drying and extrusion and is expected to make sheet with quality advantages in color, clarity, and purity. Octal’s two reactors will supply almost 400 million lb of APET sheet and 330 million lb/yr of pelletized PET for bottles. Octal is installing seven calendering lines for each of the two reactors (with room for two more each). They will make APET sheet up to 63 in. wide and 8 to 36 mils thick. Octal expects I.V. >0.78, haze <2%, and thickness tolerances of ±1% (vs. ±5% for standard calendered APET sheet). Calendering lines and winders are built by SML Maschinengesellschaft in Austria (U.S. office in Kennesaw, Ga.). (972) 985-4370 • www.octalglobal.com
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Editor PickSizing the Barrier Gap
Here’s a less complex way to properly size the barrier gap for barrier screws.