Dielectric, radiation-curable coating compositions
US7109253B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1997 |
| Grant date | Sep 19, 2006 |
| Priority date | — |
| Expiry date | Nov 16, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/027
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A metal conductor is provided with a cured coating of about 2.5 μm to about 500 μm thickness, which cured coating has a dielectric dissipation factor (60 Hz, 24° C.) of lower than about 0.05 and is a radiation-cured coating formulated from components comprising: a) an acrylate functional urethane oligomer having a hydrocarbon backbone; b) one or more mono- or polyfunctional diluents; and optionally, c) one or more light sensitive radical generating compounds. The invention further provides a radiation-curable coating composition for coating a metal conductor. Also disclosed is a method of making a metal conductor provided with a cured coating of about 2.5 μm to about 500 μm thickness, which cured coating has a dielectric dissipation factor (60 Hz, 24° C.) of lower than about 0.05.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.