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:
May. 18, 2021
Filed:
Jul. 10, 2019
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Min Ji Choi, Daejeon, KR;
Sungshik Eom, Daejeon, KR;
Dawon Jung, Daejeon, KR;
Tae Yun Kim, Daejeon, KR;
Dong Hyun Ko, Daejeon, KR;
Mi Young Kim, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/64 (2006.01); C07C 29/00 (2006.01); C07C 29/153 (2006.01);
U.S. Cl.
CPC ...
C07C 45/64 (2013.01); C07C 29/153 (2013.01);
Abstract
A method for preparing dimethylolbutanal including performing an aldol reaction of n-butyraldehyde (n-BAL) and paraformaldehyde (PFA) in the presence of water and an alkylamine catalyst, in which a weight ratio of the paraformaldehyde:water is 1:0.35 to 1:0.85.