Process for reducing peroxide migration in crosslinkable ethylene-based polymer compositions
US9758638B2 · kind B2 · utility
3Cited by
25References
2Claims
0Family size
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Key dates
| Filing date | Sep 5, 2013 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Sep 13, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/014
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A composition comprising: A. 91.5 to 97.9% of a crosslinkable ethylene-based polymer, e.g., LDPE; B. 1 to 3% of an organic peroxide, e.g., dicumyl peroxide; C. 1 to 5% of a dielectric fluid, e.g., an alkylated naphthalene; and D. 0.1 to 0.5% of a coagent such as AMSD. The compositions exhibit high cure rates without any significant reduction in scorch resistance, heat ageing and electrical performance, and are particularly useful as insulation sheaths for medium and high voltage power cables.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.