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. 16, 2015
Filed:
Jan. 31, 2013
Applicant:
Eastman Chemical Company, Kingsport, TN (US);
Inventors:
Kenneth Wayne Hampton, Jr., Glimer, TX (US);
Eugene H. Brown, Gilmer, TX (US);
Assignee:
Eastman Chemical Company, Kingsport, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/72 (2006.01); C07C 45/75 (2006.01); C07C 45/85 (2006.01);
U.S. Cl.
CPC ...
C07C 45/75 (2013.01); C07C 45/85 (2013.01);
Abstract
An improved process for preparing hydroxy aldehydes, such as hydroxypivaldehyde, is provided. Specifically, the process employs an alkaline additive for separating by-product amine salts from a hydroxy aldehyde and other reaction products formed in the process of preparing a hydroxy aldehyde using an amine catalyst.