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. 05, 2013
Filed:
Mar. 31, 2008
Holger Tanneberger, Bad Fallingbostel, DE;
Lutz Driesen, Walsrode, DE;
Juergen Engelstardt, Bad Fallingbostel, DE;
Werner Lange, Visselhoevede, DE;
Hans-guenter Poersch-panke, Bomlitz, DE;
Holger Tanneberger, Bad Fallingbostel, DE;
Lutz Driesen, Walsrode, DE;
Juergen Engelstardt, Bad Fallingbostel, DE;
Werner Lange, Visselhoevede, DE;
Hans-Guenter Poersch-Panke, Bomlitz, DE;
Dow Global Technologies LLC, Midland, MI (US);
Abstract
The present invention relates to the continuous preparation of alcohol- and plasticizer-free finished nitrocellulose solutions having a particularly low water content by partial distillative falling-film evaporation of comparatively water-rich, optionally emulsion-like crude nitrocellulose solutions which are preferably provided by dissolving nitrocelluloses of the customary solid forms offered, which are known to be initially water-moist as a result of the preparation, in preferably ethyl acetate.