Polyethylene composition for injection molding
US12234328B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 1, 2023 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Feb 1, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Polyethylene composition comprising at least 50 wt. % of polyethylene based on the total weight of the polyethylene composition, and having a density of at least 0.910 g/cm3; a melt index MI2 ranging from 3.0 to 60.0 g/10 min; an unsaturation index higher than 2,000 wherein the unsaturation index is the product of the Mn in Dalton and the vinyl unsaturation units per 1,000 carbon atoms as determined by ASTM D6248-98:2004; a complex viscosity at 0.1 rad/sec at 190° C. ranging from 200 to 20,000 Pa·s; and a ratio of complex viscosity at a frequency of 0.01 rad/sec to the complex viscosity at a frequency of 100 rad/sec of at most 8.0, said ratio being measured at 190° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.