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. 17, 2003
Filed:
Mar. 13, 2001
Johann Männer, Weyregg, AT;
Rudolf Emeder, Seewalchen, AT;
Christian Hager, Seewalchen, AT;
Franz Nussbaumer, Vöcklamarkt, AT;
Thomas Endl, Vöcklabruck, AT;
Johannes Kneissl, Weyregg, AT;
Lenzing Aktiengesellschaft, Lenzing, DE;
Abstract
The invention relates to a process for the reprocessing respectively purification of aqueous solutions of a tertiary amine oxide, particularly of process waters, e.g. used precipitation baths, which occur during the production of cellulosic moulded bodies, comprising the separation of turbidifying agents and solid impurities from the solution. The process in accordance with the invention is characterised in that the turbidifying agents and impurities are at least partly separated by means of a flotation process.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile