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:
Aug. 12, 1997
Filed:
Jun. 05, 1995
Applicant:
Inventors:
Stefan Zikeli, Regau, AT;
Peter Hinterholzer, Schorfling, AT;
Assignee:
Lenzing Aktiengesellschaft, , AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; D01F / ;
U.S. Cl.
CPC ...
264207 ; 1062002 ; 1062003 ; 162 70 ; 162 81 ;
Abstract
The invention is concerned with a process for the production of a suspension of cellulose in a liquid, aqueous tertiary amine-oxide, wherein shredded cellulose is mixed with the liquid, aqueous tertiary amine-oxide, said process comprising: (A) contacting the shredded cellulose with the liquid, aqueous tertiary amine-oxide, a first mixture being prepared, and (B) spreading this first mixture mechanically as a layer on a surface and transporting it along this surface while intensively being mixed, until a homogeneous suspension is produced which is removed from the surface, wherein (C) measures (A) and (B) are carried out continuously.