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. 28, 2000
Filed:
Oct. 16, 1998
Applicant:
Inventors:
Harmut Ruf, Vocklabruck, AT;
Heinrich Firgo, Vocklabruck, AT;
Siegfried Ambrosch, Vocklabruck, AT;
Christian Schlossnikl, Vocklabruck, AT;
Raimund Jurkovic, Lenzing, AT;
Assignee:
Lenzing Aktiengesellschaft, Lenzing, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ;
U.S. Cl.
CPC ...
427354 ; 427369 ; 427384 ; 427394 ; 427396 ; 427439 ;
Abstract
The invention relates to a process for producing a strengthened fiber assembly containing cellulosic fibers with the cellulose being present in the crystalline structure of cellulose II, by contacting the fiber assembly with an aqueous solution of N-methylmorpholine-N-oxide (NMMO) at elevated temperature and subsequently washing the fiber assembly, characterized in that contacting is effected in a manner that from the relation