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. 02, 2006
Filed:
Oct. 18, 1999
Stefan D. Beckers, Hechtel-Eskel, BE;
Peter Weigel, Kleinmachnow, DE;
Hans-peter Fink, Teltow, DE;
Michael Dosz, Berlin, DE;
Hans-joachim Purz, Teltow, DE;
Stefan D. Beckers, Hechtel-Eskel, BE;
Peter Weigel, Kleinmachnow, DE;
Hans-Peter Fink, Teltow, DE;
Michael Dosz, Berlin, DE;
Hans-Joachim Purz, Teltow, DE;
Abstract
Apparatus for the production of extruded blown cellulose film from a solution of cellulose, water and an amine-oxide, which includes:—extrusion apparatus for continuously extruding a cellulose solution to produce a cellulose film;—solidifying apparatus for solidifying the extruded cellulose film;—drawing apparatus positioned downstream of the extrusion apparatus for continuously drawing the extruded cellulose film from the extrusion apparatus; and a tubular member for containing precipitation apparatus and for receiving an extruded blown film wherein the tubular member is situated within a precipitation bath. The invention also includes a method of extruding blown film.