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:
Nov. 14, 1989
Filed:
Jun. 27, 1988
Applicant:
Inventors:
Henri D Chanzy, La Tronche, FR;
Michel Paillet, Grenoble, FR;
Assignees:
Institut Textile de France, Boulogne Billancourt Cedex, FR;
Centre de Recherche Scientifique, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; D01F / ;
U.S. Cl.
CPC ...
106203 ; 264186 ; 264187 ;
Abstract
The invention relates to solutions of cellulose destined to be extruded or spun, containing a tertiary amine oxide as solvent for the cellulose and in particular the N-oxide of N-methylmorpholine. It consists of using ammonium chloride or calcium chloride as additive in the preparation of these solutions.