JOLIET, ILL. - Amoco Chemical Co. has initiated a recall on multilayer bags used to house plastic-processing chemicals. The company has alerted customers to possible defects in 2,000-pound bulk bags used for storing and transporting Amoco's tri-melytic anhydride, a powdered chemical used in plastic coatings and other proc-esses. It has offered to take the bags back and replace them.
A source for Amoco at the Joliet plant where the tri-melytic anhydride is made asked not to be identified, but said the bags have an inner polyethylene liner that could tear, releasing the powdered contents.
``We are working to determine how the potential flaw occurred,'' the source said. ``But have not made a definitive judgment on that right now.''
The source said it was not clear whether the defects were due to the material, or the manufacture of the bag, done by Stone Container Corp. of Chicago.
The potential defect was detected in the joint of the inner PE liner in the weld area extending from the top inlet spout to the upper corner of the bag where the liner is attached to the outer shell. A tear would allow the chemical particles to migrate to the space between the inner lining and the shell.
The source said any customers who had received bags in the 30-day period prior to Feb. 7 can arrange for pick-up and replacement of the bags by contacting Amoco at (800) 621-4567.
Return of the bag is at the customer's discretion, and the source said there is no environmental threat from leakage of the material outside the bags.
The Stone Container bags can be identified by the manufacturing tag sewn to the top seam, Amoco said. Bags made by other manufacturers are not included in the recall.