High density polyethylene and articles made therefrom
US7855253B2 · kind B2 · utility
12Cited by
25References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2009 |
| Grant date | Dec 21, 2010 |
| Priority date | — |
| Expiry date | Jun 24, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F4/65925
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Articles such as, for example, pipes or bottles, prepared from multimodal polyethylenes possessing a density from 0.940 to 0.965 g/cm3, and an I21 from 4 to 20 dg/min, and comprising a low molecular weight ethylene copolymer having a weight average molecular weight from 5,000 amu to 50,000 amu; and a high molecular weight ethylene copolymer having a weight average molecular weight from 60,000 amu to 800,000 amu, both components having a desirable balance of short chain branching making the multimodal polyethylene suitable for films, pipes, rotomolding applications and blow molding applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.