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. 06, 2004
Filed:
Oct. 15, 2002
Applicant:
Inventors:
Youn-Woo Lee, Seoul, KR;
Hyun-Nam Cho, Seoul, KR;
Jong Sung Lim, Seoul, KR;
Young-Jae Hur, Seoul, KR;
Assignee:
Korea Institute of Science and Technology, Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 3/800 ;
U.S. Cl.
CPC ...
C08F 3/800 ;
Abstract
Disclosed is a method for preparing dimethyl dipropargylmalonate polymer containing exclusively six-membered ring structure by using supercritical or sub-critical carbon dioxide as a solvent with a transition metal chloride catalyst.