CATALYST ADDITIVE
RU2026120913APending Publication Date: 2026-07-09DOW GLOBAL TECHNOLOGIES LLC
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Patent Information
- Authority / Receiving Office
- RU · RU
- Patent Type
- Applications
- Current Assignee / Owner
- DOW GLOBAL TECHNOLOGIES LLC
- Filing Date
- 2024-10-28
- Publication Date
- 2026-07-09
AI Technical Summary
Technical Problem
Catalysts for producing bimodal high-density polyethylene (HDPE) face challenges in low productivity, particularly for the high molecular weight portion, leading to high cost-in-use (CIU) and operational inefficiencies.
Method used
The use of an activity-enhancing compound is introduced to alter the molecular structure of non-metallocene precatalysts, resulting in a productivity-enhanced bimodal catalyst system that includes both non-metallocene and metallocene catalyst components.
Benefits of technology
This approach significantly increases the productivity of both high and low molecular weight components of the bimodal HDPE catalyst, leading to improved mechanical properties, processability, and reduced CIU, while maintaining desired polymer properties.
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Abstract
A method of making a productivity enhanced bimodal catalyst, the method includes combining a non-metallocene precatalyst, a metallocene precatalyst, an effective amount of an activator, and an effective amount of an activity-enhancing compound to activate the non-metallocene precatalyst and the metallocene precatalyst into the productivity enhanced bimodal catalyst.
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