Crosslinkable polyethylene composition, method of making the same, and articles made therefrom
US8283420B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2008 |
| Grant date | Oct 9, 2012 |
| Priority date | — |
| Expiry date | Oct 4, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L51/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The instant invention is a crosslinkable polyethylene composition obtained via a process comprising the steps of (1) providing a polyethylene component; (2) providing an organic peroxide crosslinking agent,(3) providing a crosslinking coagent which comprises at least two terminal carbon-carbon double bonds and is an alkadiene, alkatriene, or alkatetraene compound; (4) melt blending the polyethylene component, the crosslinking agent, and the crosslinking coagent at a temperature less than the decomposition temperature of the crosslinking agent; and (5) thereby forming the crosslinkable polyethylene composition. The crosslinkable polyethylene composition may further include a scorch inhibitor, a cure booster, a stable free radical, one or more conventional additives, and/or combinations thereof. The instant invention further includes articles comprising the crosslinked product of the crosslinkable polyethylene composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.