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:
Apr. 29, 2014
Filed:
Jan. 31, 2013
Eastman Chemical Company, Kingsport, TN (US);
Kenneth Wayne Hampton, Jr., Gilmer, TX (US);
Eugene H. Brown, Gilmer, TX (US);
Thomas K. Brown, Hallsville, TX (US);
Amy K. Paris, Kingsport, TN (US);
Kevin S. Howe, Longview, TX (US);
Thomas Allen Puckette, Longview, TX (US);
Eastman Chemical Company, Kingsport, TN (US);
Abstract
A process for producing polyols (such as neopentyl glycol) is disclosed which comprises reacting formaldehyde and another aldehyde in the presence of a trialkylamine catalyst and a base promoter to form an Aldol condensation reaction product. The base promoter improves removal of nitrogen containing salts prior to hydrogenation of the hydroxy aldehyde to produce the polyol. The improved process also reduces trialkylamine catalyst usage, improves trialkylamine catalyst recovery, and reduces nitrogen-containing salts prior to hydrogenation.