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. 21, 2015
Filed:
Sep. 28, 2011
Hyeon-gook Kim, Daejeon, KR;
Ki-soo Lee, Daejeon, KR;
Dae-sik Hong, Daejeon, KR;
Eun-kyoung Song, Daejeon, KR;
Man-seong Jeon, Daejeon, KR;
Hyeon-Gook Kim, Daejeon, KR;
Ki-Soo Lee, Daejeon, KR;
Dae-Sik Hong, Daejeon, KR;
Eun-Kyoung Song, Daejeon, KR;
Man-Seong Jeon, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
The present invention relates to a preparation method of a metallocene catalyst. More particularly, the present invention relates to a preparation method of a supported hybrid metallocene catalyst, including the steps of treating a support having a water content of 4 to 7% by weight with trialkyl aluminum at a predetermined temperature; supporting alkyl aluminoxane on the support; and supporting a metallocene compound on the alkyl aluminoxane-supported support. According to the present invention, it is possible to prepare a supported hybrid metallocene catalyst which shows a high activity in the polymerization of olefins and enables the preparation of polyolefins having a high bulk density, by a simple process.