Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hybrid supported metallocene catalyst, and polyolefin resin having excellent processability and using same

A metallocene catalyst and metallocene compound technology, applied in the field of supported hybrid metallocene catalyst and its preparation, can solve the problems of no display gap, resin molecular weight gap, no display molecular weight gap, etc., and achieve excellent processability and excellent impact strength. Effect

Inactive Publication Date: 2019-03-01
HANWHA CHEMICAL CORPORATION
View PDF13 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, although a method of controlling the molecular weight distribution and molecular weight by using a binuclear metallocene catalyst on a carrier is disclosed, there is a problem of low activity
[0010] In addition, in order to improve processability, when two or more metallocene catalysts are mixed to prepare a supported catalyst, the difference in molecular weight of the resin caused by the two catalysts is severe, the molecular weight distribution is too wide, or because the difference in molecular weight is not shown, it is different from that of a single metallocene catalyst. Catalysts show no gaps compared to

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hybrid supported metallocene catalyst, and polyolefin resin having excellent processability and using same
  • Hybrid supported metallocene catalyst, and polyolefin resin having excellent processability and using same
  • Hybrid supported metallocene catalyst, and polyolefin resin having excellent processability and using same

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0174] The preparation method of the polyolefin resin involved in the present invention comprises the step of contacting the supported hybrid metallocene catalyst with at least one olefin monomer and preparing a polyolefin homopolymer or copolymer.

[0175] The preparation method (polymerization reaction) of the polyolefin resin of the present invention may be a slurry phase or a gas phase polymerization reaction. In addition, each polymerization reaction condition can be changed variously according to the polymerization method (slurry polymerization, gas phase polymerization reaction), the desired polymerization result, or the form of the polymer. The degree of deformation can be easily realized by those skilled in the art.

[0176] When the polymerization is carried out in a slurry phase, a solvent or the olefin itself may be used as a medium. The solvent may be propane, butane, pentane, hexane, octane, decane, dodecan, cyclopentane, methylcyclopentane, cyclohexane, methylc...

preparation example 1

[0192] Preparation example 1 of the first metallocene compound: (indenyl (cyclopentadienyl)) zirconium dichloride [(Indenyl (cyclopentadienyl)] ZrCl 2 ) preparation

[0193] Indene (5g, 0.043mol) was dissolved in hexane (150mL) and then fully stirred. After cooling to -30°C, 2.5M n-butyllithium (n-BuLi) hexane solution was slowly dripped into the hexane solution ( 17mL, 0.043mol), stirred at room temperature for 12 hours. The white suspension was filtered through a glass filter, and after the white solid was sufficiently dried, indene lithium salt was obtained (yield: 99%).

[0194] Indene lithium salt (1.05g, 8.53mmol) slurry (slurry) solution and (cyclopentadienyl) zirconium trichloride ((cyclopentadienyl) ZrCl 3 ) (2.24g, 8.53mmol) was slowly dissolved in ether (30mL) and cooled to -30°C. Into this ether solution, indene lithium salt dissolved in ether (15 mL) was slowly added dropwise, followed by stirring for 24 hours to obtain (indenyl(cyclopentadienyl))zirconium dich...

preparation example 2

[0195] Preparation Example 2 of the First Metallocene Compound: (2-Methylbenzo[e]indenyl(cyclopentadienyl))zirconium dichloride[(2-methyl benzoindenyl(cyclopentadienyl)]ZrCl 2 ) preparation

[0196] Using 2-methylbenzo[e]indene (2-methylbenzoindene), obtain (2-methylbenzo[e]indenyl (cyclopentadienyl)) dichloride by the same method as Preparation Example 1 Zirconium ([2-methyl benzoindenyl(cyclopentadienyl)]ZrCl 2 ) (yield: 95%).

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
specific surface areaaaaaaaaaaa
melt flow indexaaaaaaaaaa
Login to View More

Abstract

The present invention relates to: a hybrid supported metallocene catalyst comprising one or more first metallocene compounds, one or more second metallocene compounds, one or more co-catalyst compounds, and a support; a preparation method therefor; and a polyolefin resin polymerized in the presence of the catalyst, wherein the second metallocene compound is a compound of a bridged structure havinga ligand of an asymmetric structure, and the polyolefin resin has a density of 0.910-0.960 g / cm3, has a molecular weight density in a unimodal distribution of 3-5, and has a melt index of 0.05-100 at2.16 kg and a melt flow index of 20-40.

Description

technical field [0001] The invention relates to a supported hybrid metallocene catalyst and a preparation method thereof, as well as a polyolefin resin with excellent processability prepared by using the catalyst and a preparation method thereof. More specifically, it relates to a hybrid loading of a catalyst having excellent comonomer reactivity, large molecular weight and molecular weight distribution, and a catalyst having low comonomer reactivity and small molecular weight and molecular weight distribution, so as to properly adjust the molecular weight of the polymerized resin Distributed catalyst, polyolefin resin using the catalyst and its preparation method. Background technique [0002] Metallocenes are basically transition metals or transition metal halogen compounds of a sandwich structure in which cyclopentadienyl ligands are coordinated, and have various molecular structures depending on the shape of the ligands and the change of the central metal. Usually, the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08F4/6592C08F4/646C08F4/642C08F4/02C08F4/659C08F10/02C08F2/34C08F2/44
CPCC08F210/16C08F4/65912C08F4/65916C08F2410/06C08F4/65925C08F4/65927C08F210/14C08F2500/12C08F4/65904C08F4/02C08F4/6228C08F4/646C08F10/02C08F210/04C08F2500/07C08F2/34C08F2/44C08F4/642C08F4/659C08F4/6592C08L23/0815
Inventor 郑东旭金东钰郑羲甲
Owner HANWHA CHEMICAL CORPORATION
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com