The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2014
Filed:
Apr. 29, 2011
Paul Georgelos, Naperville, IL (US);
Pat Montefusco, Genoa, IL (US);
Roy Speer, Barrington, IL (US);
Jeanne M. Skaggs, Arlington Heights, IL (US);
James J. Sanfilippo, Barrington Hills, IL (US);
Paul Georgelos, Naperville, IL (US);
Pat Montefusco, Genoa, IL (US);
Roy Speer, Barrington, IL (US);
Jeanne M. Skaggs, Arlington Heights, IL (US);
James J. Sanfilippo, Barrington Hills, IL (US);
Other;
Abstract
A biopolymer blown film extrusion system comprising an extruder receiving polymer pellets and at least two additives, and generating a molten mass having at least one layer; a die receiving the molten extrudates and generating a bubble having at least one layer from a die orifice; an internal bubble blower operably connected to maintain air inside the bubble; a bubble collapsing frame receiving the bubble and generating a biopolymer film having at least one layer, the film having a selected elongation at break of 180% or more in one direction and heat sealing at 195° F. or less; a nip roller operably connected to draw the biopolymer film from the bubble collapsing frame; a turning bar operably connected to change a travel angle of the biopolymer film; and a travel roller operably connected to direct travel of the biopolymer film.