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

Method of making ziegler-natta type catalysts

一种催化剂、齐格勒的技术，应用在催化剂前体组合物领域，能够解决凝胶等问题

Active Publication Date: 2013-01-23
UNION CARBIDE CORP
View PDF17 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polymer fines, which tend to have significantly different molecular weights and isoviscosity temperatures, compared to those of the bulk polymer, are not easily homogeneously mixed with the bulk polymer, but Formation of segregated regions on pellets and can lead to gels or other defects in blown film or other extruded articles made from them

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
  • Method of making ziegler-natta type catalysts
  • Method of making ziegler-natta type catalysts
  • Method of making ziegler-natta type catalysts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0109] The hexane and precursor powder were added to the mixing vessel and the temperature was maintained at about 20°C. The ethyl aluminum sesquichloride is added over a period of about 15 to 30 minutes. The temperature was raised to 50°C and stirred for 60 to 70 minutes. After stirring, the slurry was allowed to stand. Temperature reduced to <35°C. Decant the supernatant solvent. Additional solvent (isopentane) was added and the suspension was stirred for 30 minutes. The isopentane solvent was decanted, isopentane was added and the suspension was stirred for an additional 30 minutes. Decant the isopentane again and add mineral oil to the mixing tank, followed by stirring. The jacket temperature of the mixing vessel was increased to 45 to 50°C, purged with nitrogen and the pressure was reduced to remove residual isopentane solvent. When the internal temperature exceeds 35°C, the catalyst slurry is ready for use. Table 4A provides the component analysis of the procatalys...

Embodiment 2

[0126] The raw material was produced according to the procedure given in Example 1 of the present invention. The pH of the raw material solution, before adding Cabosil TS-610, is> 6. That is basically neutral.

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
diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

A process for making a Ziegler-Natta-type catalyst precursor including contacting a Group 4 metal compound with one or more Titanium compounds selected from the group of TiCl3 (A1-activated or hydrogen-reduced), and Ti(OR)4 where R is ethyl, isopropyl or butyl in the presence of an alcohol solution having at least one C2-C4 alcohol and at least one of MgCl2 and magnesium compounds which form MgCl2 in the presence of the alcohol solution to form a catalyst precursor solution is provided. Also provided are catalysts made from the precursors produced by the process. Also provided are polymers made using the catalysts.

Description

Technical field [0001] The present invention relates to catalyst precursor compositions, methods of making such compositions, and methods of using such compositions to make improved polymers. More specifically, the present invention relates to a new Ziegler-Natta procatalyst (procatalyst) composition, which is combined with a cocatalyst to form olefins used in particle formation processes (especially in gas phase and sludge). In the slurry polymerization process) polymerization (resin formed as a result of improved polymer properties) catalyst composition. Background technique [0002] The performance of the particulate polymer and the polymer powder recovered from the polymerization reactor basically depends on the performance of the catalyst used in their preparation method. Specifically, the selection of the shape, size, size distribution, and other morphological properties of the solid catalyst is important in order to ensure operability and commercial success. This is part...

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): C08F10/02C08F4/54
CPCC08F210/16C08F10/02C08F4/6545C08F210/14C08F2500/12C08F2500/18C08F2500/24C08F4/64C08F4/654C08F10/00
Inventor R.J.乔根森B.E.瓦格纳
Owner UNION CARBIDE CORP
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com