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. 03, 2009
Filed:
Oct. 13, 2004
Min-hyung Lee, Daejeon, KR;
Sun-woo Lee, Daejeon, KR;
You-mi Jeong, Daejeon, KR;
Doh-yeon Park, Daegu, KR;
Jin-young Ryu, Busan, KR;
Min-hyung Lee, Daejeon, KR;
Sun-woo Lee, Daejeon, KR;
You-mi Jeong, Daejeon, KR;
Doh-yeon Park, Daegu, KR;
Jin-young Ryu, Busan, KR;
LG Chem, Ltd., , KR;
Abstract
The present invention relates to a method for preparing a styrenic olefin. The method of the present invention comprises the steps of: adding a catalyst and a solvent in a reactor and heating the reactor to create a reflux state; adding an alcohol starting material to the reactor dropwise at a constant rate; removing water generated by adding the alcohol starting material from the reactor, and purifying the obtained styrenic olefin. The method of the present invention is advantageous in minimizing byproducts and preparing styrenic olefins having a variety of substituents in high yield.