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:
Jun. 01, 1993
Filed:
Dec. 06, 1991
Applicant:
Inventors:
Dieter Eichinger, Vocklabruck, AT;
Raimund Jurkovic, Lenzing, AT;
Stephan Astegger, Vocklabruck, AT;
Heinrich Firgo, Vocklabruck, AT;
Peter Hinterholzer, Timelkam, AT;
Karin Weinzierl, Timelkam, AT;
Stefan Zikeli, Regau, AT;
Assignee:
Lenzing Aktiengesellschaft, Lenzing, AT;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08B / ; C08L / ; C09J / ; C09J / ;
U.S. Cl.
CPC ...
536 56 ; 536 57 ; 106168 ; 106176 ; 106203 ;
Abstract
Shaped cellulosic bodies and especially cellulosic fibers or filaments are produced by precipitating cellulose from a solution containing cellulose and NMMO. To allow elevated concentrations of NMMO in the precipitating bath without detriment to the properties of the fibers or filaments produced, the temperature of the precipitating bath is held at most at 0.degree. C.