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:
Jul. 20, 2010
Filed:
Nov. 19, 2008
Jin-kyu Ahn, Seoul, KR;
Joon-ryeo Park, Seoul, KR;
Chun-byung Yang, Daejeon, KR;
Jong-sik Kim, Daejon, KR;
Jin-Kyu Ahn, Seoul, KR;
Joon-Ryeo Park, Seoul, KR;
Chun-Byung Yang, Daejeon, KR;
Jong-Sik Kim, Daejon, KR;
Samsung Total Petrochemicals Co., Ltd., Seosan-shi, Chungcheongnam Province, KR;
Abstract
Provided is a preparation method of a catalyst for ethylene (co)polymerization, comprising the following steps: (1) preparing a magnesium compound solution by contact-reacting a halogenated magnesium compound with a mixed solvent of cyclic ether and at least one alcohol; (2) reacting the resulted magnesium compound solution from the above step (1) with a silicon compound having at least one alkoxy group; (3) preparing a support by adding a titanium compound to the resulted product from the step (2); and (4) reacting thus obtained support with a titanium compound and optionally a monoester compound, resulting in a catalyst. Catalysts prepared according to the present invention have a regulated particle shape, and their particle size can be easily adjusted. Therefore, with such catalyst, it is possible to produce polymers having high bulk density at high production yield.