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:
Sep. 11, 2012
Filed:
Dec. 02, 2009
Applicants:
Bernhard Kropac, Kastl, DE;
Wolfgang Kerbl, Englsberg, DE;
Erich Gatter, Kastl, DE;
Inventors:
Assignee:
Clariant Finance (BVI) Limited, Tortola, VG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 3/18 (2006.01); B09B 3/00 (2006.01); B64F 5/00 (2006.01); C07C 29/88 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a process for working up glycol-containing aircraft deicers, by (1) removing the suspended impurities from the used aircraft deicer, (2) treating the product thus obtained in such a way that the thickeners present therein are no longer capable of gel formation, (3) before or after step (2) establishing a pH of >7, (4) and then fractionally distilling off the glycols.