CHICAGO (July 18, 2:40 p.m. EDT) — Dow Chemical Co. is moving its Saran-brand polyvinylidene dichloride resin into blown coextruded film.
"Previously, you couldn't get long-enough run times," said Robert Beyersdorf, global value center and research manager for Midland, Mich.-based Dow's Saran line. "But we've worked to modify the extrusion die technology and made key change to the resin to make it work."
Brampton Engineering and Macro Engineering, a pair of Toronto machinery firms, each are producing an extrusion line outfitted with the new dies. The lines are expected to be in commercial use by the fourth quarter of 2000.
Target markets for co-extruded Saran film are case-ready meats — which are shipped directly to stores and need longer shelf life and excellent barrier properties — and metallized film used in drink box pouches and bags for potato chips and cookies.