Patent ID: 8926308
Filing Date: 2015-01-06
Classification: A21C,B29C

Abstract:
1. An extruder, comprising: a compression generator configured to extrude a plastic mass in a laminar flow with a pressure in a range of less than 120 psi; a compression chamber having an upstream opening to receive the plastic mass from the compression generator, wherein at least a portion of an interior of the compression chamber having a coefficient of friction in a range of about 0.2 and 0.35; a die plate attached to a downstream opening of the compression chamber, the die plate being horizontally aligned with a longitudinal direction of a compressive force and the laminar flow of the plastic mass; and wherein the die plate has a plurality of lands across a front face and is oriented downstream of the compression generator at a distance to minimize turbulence and pulsing of the plastic mass while maintaining the laminar flow and minimizing a pressure drop, wherein the die plate is configured to maintain about 5 to 15 percent density uniformity of the plastic mass across the front face of the die plate.