Technology mirrors Dow's recent development in blown film.

Dow Chemical Co., Midland, Mich., has adopted nanolayer technology developed for blown film (the film technology was discussed in our June issue). At the recent SPE ANTEC in Boston, a paper by Dow’s S. Crabree, J. Dooley, J. Robacki, P.C. Lee, R. Wrisley, and C. Pavlicek detailed technology that used feedblock and flow-divider technology more common in flat-die extrusion, as well as a specially configured die head to produce blow molded bottles containing more than 30 layers.