Patent ID: 6838041
Filing Date: 2005-01-04
Classification: B29B,B29C,B29K,B29L

Abstract:
1. A process for manufacturing a polymeric profile, comparing the steps of: (a) extruding a polymer having a first profile at an extrusion temperature; (b) cooling said polymetric profile; (c) cutting said profile to a predefined length, said length having a pair of ends; (d) rheating at least a portion of said extruded profile to at least a first temperature, said first temperature which is below a second temeperature at which the profile becomes melt processable; (e) sealing at least one end said profile, (f) reshaping said reheated portion of said first profile at said second temperature to a second profile by the application of internal pressure to an interior of said first profile or by the application of external vacuum to an exterior of said first profile or combinations thereof, said second profile having at least one middle internal cross-sectional dimension interior of said ends which is greater than a corresponding internal cross-sectional demension of said first profile, said second profile additionally having at least one of the following characteristics (g) cooling said second profile.