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:
Dec. 07, 2004
Filed:
May. 18, 2001
Zhenhua Jing, Beijing, CN;
Rong Junfeng, Beijing, CN;
Wei Zhang, Beijing, CN;
Xiaoyu Hong, Beijing, CN;
Xuhua Zhou, Beijing, CN;
Other;
Abstract
Described are a MgCl based carrier containing Ti(OR) and ROH, wherein R is C ˜C alkyl, and solid catalyst components made from said carrier. The carrier and the solid catalyst components according to the present invention are characterized in that their X-rays powder diffraction spectra, one or two main diffraction lines or a halo appears at 2&thgr; of 2˜14° and in the range of 2&thgr; of 14˜50°, there are the characteristic diffraction lines of anhydrous &agr;-MgCl . The carrier according to the present invention is directly obtained by reacting anhydrous magnesium chloride with an alcohol and can be used to prepare solid catalyst components without dealcoholization, and the solid catalyst components exhibit high polymerization activity when employed for polymerizing ethylene.