NEW CATALYST SYSTEM FOR THE PRODUCTION OF POLYETHYLENE COPOLYMERS IN A HIGH-TEMPERATURE SOLUTION POLYMERIZATION PROCESS
Patent Information
- Application Number
- DE602017092682
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2016-12-15
- Filing Date
- 2017-12-12
- Publication Date
- 2025-11-12
- Estimated Expiration
- 2037-12-12
AI Technical Summary
Existing metallocene catalyst systems for ethylene copolymerization lack an optimal balance of solubility, productivity, comonomer incorporation ability, and molecular weight capability, particularly at high temperatures, failing to produce polymers with desired properties such as low density and high melt index.
A new catalyst system comprising a metallocene complex with specific ligand configurations and a boron-containing cocatalyst is used for ethylene copolymerization in a high temperature solution process, enhancing solubility, productivity, and comonomer incorporation.
The new catalyst system achieves improved polymer properties with balanced solubility, productivity, and comonomer incorporation, producing ethylene copolymers with densities down to 0.850 g/cm³ and melt indices below 0.3 g/10 min, suitable for various end-use applications.