Microwave-transparent thermosetting resin compositions, electrical laminates obtained therefrom, and process of producing these

摘要

The present invention relates to a thermosetting resin composition with excellent electrical properties comprising (a) one or more terminally unsaturated urethane resins, (b) styrene, and (c) brominated styrene. The aforementioned composition finds great utility as a printed circuit board laminate suitable for use at microwave frequencies.