Polyethylene compositions and closures made from them
US9637628B2 · kind B2 · utility
6Cited by
64References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 12, 2016 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | May 12, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/24
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A dual reactor solution process gives high density polyethylene compositions containing a first ethylene copolymer and a second ethylene copolymer and which have good processability, stiffness, and environmental stress crack resistance. The polyethylene compositions are suitable for compression molding or injection molding applications and are particularly useful in the manufacture of caps and closures for bottles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.