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:
Nov. 08, 2016
Filed:
Jul. 21, 2014
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Sung Shik Eom, Daejeon, KR;
Min Soo Kim, Daejeon, KR;
Tae Yun Kim, Daejeon, KR;
Dong Hyun Ko, Daejeon, KR;
Assignee:
LG Chem, Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 45/00 (2006.01); C07C 45/75 (2006.01); C07C 45/86 (2006.01);
U.S. Cl.
CPC ...
C07C 45/75 (2013.01); C07C 45/86 (2013.01);
Abstract
Disclosed is a method of preparing methylol alkanal. According to the present invention, a yield of methylol alkanal may be improved without using formaldehyde in an excess amount of a theoretical minimum molar ratio or more, formaldehyde wastewater may be reduced, and the amount of formaldehyde remainder, which may act as a hydrogenation catalyst poison, comprised in the methylol alkanal is decreased when the prepared methylol alkanal is hydrogenated resulting in improvement in efficiency of the hydrogenation.