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:
Feb. 28, 1978
Filed:
Jan. 02, 1974
Applicant:
Inventor:
William H Millick, III, New Castle, DE (US);
Assignee:
Hercofina, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
560 78 ;
Abstract
Disclosed is a process for the catalytic hydrogenation of the aldehyde content of molten aldehydic dimethyl terephthalate (DMT). The process comprises first dissolving in the molten aldehydic DMT a quantity of molecular hydrogen sufficient to hydrogenate at least a substantial portion of the aldehydic content, and then contacting the molten aldehydic DMT with its dissolved hydrogen content with a hydrogenation catalyst for a period of time sufficient for reaction of the dissolved hydrogen with the aldehydic content to take place, but insufficient for substantial ring hydrogenation to occur.