Olefin-based polymer
US10508165B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2016 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | Dec 26, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2800/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides an olefin-based polymer which satisfies the following conditions of (1) to (4) and is capable of exhibiting improved impact strength without degrading mechanical properties such as tensile strength:(1) density (d): from 0.850 to 0.910 g/cc, (2) melting index (MI, 190° C., 2.16 kg load conditions): from 0.1 to 100 g/10 min, (3) molecular weight distribution (MWD): from 1.5 to 3.0, and (4) two peaks are shown in a temperature range of −20° C. to 120° C. when taking measurements of temperature rising elution fractionation (TREF), and a relation of T(90)−T(50)≥60° C. is satisfied (where T(90) is a temperature at which 90 wt % of the olefin-based polymer is eluted, and T(50) is a temperature at which 50 wt % of the olefin-based polymer is eluted).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.