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:
May. 10, 2016
Filed:
Mar. 29, 2012
Yvonne M. Goerlach-doht, Rosengarten, DE;
Juergen Hermanns, Nottensdorf, DE;
Peter E. Pierini, Lake Jackson, TX (US);
Marco Grossstueck, Walsrode, DE;
Michael Schreck, Walsrode, DE;
Yvonne M. Goerlach-Doht, Rosengarten, DE;
Juergen Hermanns, Nottensdorf, DE;
Peter E. Pierini, Lake Jackson, TX (US);
Marco Grossstueck, Walsrode, DE;
Michael Schreck, Walsrode, DE;
Abstract
A particulate cellulose derivative is obtained in a process of grinding and drying a moist cellulose derivative which comprises the steps of A) providing a cellulose derivative having a moisture content of from 60 to 95 percent, based on the total weight of the moist cellulose derivative, B) grinding and partially drying the moist cellulose derivative in a gas-swept impact mill; and C) contacting the ground and partially dried cellulose derivative with an additional amount of a drying gas outside the gas-swept impact mill. The obtained particulate cellulose derivative has a high untapped bulk density and a good flowability.