Catalyst composition containing organic boron compound and application thereof
By combining organoboron compounds with specific structures with non-metallocene catalysts to form catalyst compositions, the problems of high cost and limited activity of high-performance polyolefin catalysts are solved, and efficient ethylene homopolymerization and copolymerization reactions are achieved, with products having high molecular weight and suitable molecular weight distribution.
Patent Information
- Application Number
- CN202411637153.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2026-05-15
AI Technical Summary
In the existing technology, high-performance polyolefin catalysts are expensive and have limited catalytic activity. The main reason is that organoboron additives have low solubility in alkanes and form stable ion pairs with the main catalyst, which limits the improvement of catalytic efficiency.
A catalyst composition is formed by combining organoboron compounds with non-metallocene catalysts, through the design of organoboron compound and non-metallocene catalyst complexes with specific structures, and combining them with organometallic aluminum compounds, for catalytic homopolymerization or copolymerization of ethylene.
It significantly improves the activity and molecular weight of the catalyst and the solubility of the catalyst, reduces the separation cost, and the catalytic products have high molecular weight and suitable molecular weight distribution, showing potential for commercial application.