Blow up ratios in foamed sheet production processes

Abstract

Compositions, systems, and methods for use in foam sheet production processes. Such processes generally comprise extruding a composition and drawing the extrudate over a forming mandrel. The ratio of the forming mandrel diameter to the extruder die diameter is referred to as the “blow up ratio” (BUR). The compositions, systems, and methods according to embodiments are directed to blow up ratios in cellulose ester foam sheet production that aim to provide for maximum sheet production output without rupture of the extrudate material.

Dependencies are inferred from the claim text.