Title:
CATALYTIC SYSTEM CONTAINING PHOSPHATE ESTER EXTERNAL ELECTRON DONOR FOR POLYPROPYLENE POLYMERIZATION AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2017/079940
Kind Code:
A1
Abstract:
The present invention provides a catalytic system containing a multi-element external electron donor, comprising a solid catalyst component (A), alkyl aluminum (B), and a multi-element external electron donor (C). The component (A) is a magnesium halide supported Ti solid component and contains a diester internal electron donor, a diether internal electron donor, or a combination thereof. The component (C) comprises a first type of external electron donors and a second type of external electron donors, wherein the first type of external electron donors comprises at least a C1-10 alkoxy silane, and the second type of external electron donors is selected from one or more phosphate ester compounds or phosphonate ester compounds. When used in olefin polymerization, the catalytic system can play a role in suppressing the high temperature activity of a catalyst, and the effect thereof is not lower than the temperature control effect of a fatty acid ester compound in the prior art.
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Inventors:
WANG LICAI (CN)
Application Number:
PCT/CN2015/094440
Publication Date:
May 18, 2017
Filing Date:
November 12, 2015
Export Citation:
Assignee:
YINGKOU CITY XIANGYANG CATALYST CO LTD (CN)
International Classes:
C08F4/646; C08F4/649; C08F10/00
Domestic Patent References:
| WO2015026731A1 | 2015-02-26 |
Foreign References:
| CN101619151A | 2010-01-06 | |||
| CN103140510A | 2013-06-05 | |||
| CN102918068A | 2013-02-06 | |||
| CN102325804A | 2012-01-18 | |||
| CN102186889A | 2011-09-14 |
Attorney, Agent or Firm:
BEIJING ORIGINTELLIGENCE IP LAW FIRM (CN)
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