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:
Oct. 23, 2018
Filed:
Dec. 01, 2015
Applicant:
Rhodia Acetow Gmbh, Freiburg, DE;
Inventors:
Assignee:
Rhodia Acetow GmbH, Freiburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/56 (2006.01); C07C 51/573 (2006.01); C07C 49/90 (2006.01); C07C 11/21 (2006.01); B27K 5/00 (2006.01);
U.S. Cl.
CPC ...
C07C 51/56 (2013.01); B27K 5/0085 (2013.01); C07C 11/21 (2013.01); C07C 49/90 (2013.01); C07C 51/573 (2013.01); B27K 2240/10 (2013.01);
Abstract
The present invention concerns a process for manufacturing a fraction comprising carboxylic acid anhydride by reaction of a fraction comprising carboxylic acid with a ketene, and the use of the fraction comprising carboxylic acid anhydride in a process for acylation of polysaccharides.