Patent · US Active

Ethylene alpha-olefin copolymers with multimodal comonomer distributions and processes for obtaining the same

US10774205B2 · kind B2 · utility

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2References
27Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 2, 2018
Grant dateSep 15, 2020
Priority date
Expiry dateSep 18, 2038

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L2314/06
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A polymer composition may include a plurality of ethylene-based polymers forming a multimodal composition distribution, each having a distinct crystallization peak in a CEF curve. A process of making a polymer composition may include melt blending a plurality of polyethylenes with different microstructural characteristics in the molten state. Another process of making a polymer composition may include polymerizing ethylene and an optional alpha olefin in combination with a plurality of metallocene catalysts in a polymerization reactor to form a plurality of ethylene based polymers. Yet another process of making a polymer composition may include polymerizing ethylene and an optional alpha olefin in combination with a multimetal catalyst in a polymerization process to form a plurality of ethylene based polymers.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.