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. 17, 2010
Filed:
Jan. 18, 2008
Ro-mi Lee, Chungcheongnam-do, KR;
Churl-young Park, Daejeon Metropolitan, KR;
Cheon-il Park, Daejeon Metropolitan, KR;
Dong-ryul Im, Daejeon Metropolitan, KR;
Jin-woo Lee, Daejeon Metropolitan, KR;
Nan-young Lee, Daejeon Metropolitan, KR;
Ro-Mi Lee, Chungcheongnam-do, KR;
Churl-Young Park, Daejeon Metropolitan, KR;
Cheon-Il Park, Daejeon Metropolitan, KR;
Dong-Ryul Im, Daejeon Metropolitan, KR;
Jin-Woo Lee, Daejeon Metropolitan, KR;
Nan-Young Lee, Daejeon Metropolitan, KR;
LG Chem, Ltd., , KR;
Abstract
The present invention relates to a prepolymerized catalyst for olefin polymerization, a process for polymerizing an olefin by using the catalyst and a polyolefin produced by the process, in which a Ziegler-Natta catalyst is prepolymerized sequentially using α-olefin and vinyl saturated cyclic hydrocarbon, and then an olefin is polymerized using the prepolymerized Ziegler-Natta catalyst, thereby producing a polyolefin with high yield. Therefore, the polymerized polyolefin has high Isotactic index, bulk density, and crystallinity.