Ethylene-based polymer composition for films with improved toughness
US10138362B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2015 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Jun 26, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/23993
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention provides a composition comprising a first composition, comprising at least one ethylene-based polymer, and wherein the first composition comprises a MWCDI value greater than 0.9, and a melt index ratio I10/I2 that meets the following equation: I10/I2≥7.0−1.2×log (I2). The invention also provides a process to form a composition comprising at least two ethylene-based polymers, said process comprising the following: polymerizing ethylene, and optionally at least one comonomer, in solution, in the presence of a catalyst system comprising a metal-ligand complex of Structure I, as described herein, to form a first ethylene-based polymer; and polymerizing ethylene, and optionally at least one comonomer, in the presence of a catalyst system comprising a Ziegler/Natta catalyst, to form a second ethylene-based polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.