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:
Mar. 21, 1989
Filed:
Jan. 05, 1987
Applicant:
Inventors:
James R Hansen, Tinley Park, IL (US);
Jerome J Rasmussen, Burbank, IL (US);
Assignee:
Viskase Corporation, Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
156203 ; 53416 ; 53417 ; 53419 ; 106164 ; 156218 ; 264136 ; 264149 ; 264150 ; 264156 ; 264173 ; 264188 ; 2642091 ; 26421111 ;
Abstract
This invention relates to a process of making flat stock fibrous cellulosic food casings containing a low plasticizer level of between about 10 wt. % and about 17 wt. %, including at least about 9 wt. % polyol, both based upon the bone dry weight of cellulose in the casing, This process comprising forming a fibrous web into a tube, annularly extruding viscose onto the tube, passing the viscose coated tube through a regenerating bath, and incorporating water-soluble plasticizer into either or both the resulting cellulosic gel stock fibrous tube and the dried fibrous tube.