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:
Aug. 02, 2016
Filed:
Sep. 30, 2014
Applicant:
Gs Caltex Corporation, Seoul, KR;
Inventors:
Sang-Wook Park, Incheon, KR;
Young-Se Oh, Busan, KR;
Ji-Su Choi, Daejeon, KR;
Ki-Ung Kim, Yeosu-si, KR;
Sang-Hee Park, Daejeon, KR;
Assignee:
GS CALTEX CORPORATION, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 283/00 (2006.01); C08G 61/02 (2006.01);
U.S. Cl.
CPC ...
C08G 61/02 (2013.01);
Abstract
A method for preparing a pitch for carbon fibers and a pitch for carbon fibers prepared by the same are disclosed. The method includes introducing a peroxide compound and ozone into a petroleum-process residual oil, followed by heat treatment for reaction. By the method, the pitch for carbon fibers, which exhibits excellent oxidative stabilization and oxidative incompatibility while having a high softening point and high strength, can be obtained at high yield at a relatively low temperature.