High processability polyethylene compositions for injection molded articles
US11174377B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2017 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Nov 8, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/066
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present disclosure includes a polyethylene composition that may include a first polyethylene resin having a density of from 0.915 g/cc to 0.970 g/cc and a melt index (I2) from 10 g/10 min to 200 g/10 min, when measured according to ASTM D1238 at 190° C. and 2.16 kg load, and a second polyethylene resin having a density of from 0.860 g/cc to 0.930 g/cc and a melt index (I2) of from 400 g/10 min to 2000 g/10 min. The density of the first polyethylene resin may be greater than the density of the second polyethylene resin and the first polyethylene resin, the second polyethylene resin, or both are copolymers of ethylene monomer and at least one α-olefin comonomer, the α-olefin comonomer including C3-C12 α-olefins. Injection molded articles produced from the polyethylene composition are also disclosed herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.