Surface-treated glass cloth, prepreg and printed wiring board

Abstract

Provided is a surface-treated glass cloth that is capable of obtaining excellent adhesiveness to a matrix resin, and in which, even when the adhesion amount of a surface treatment layer is increased, the impregnability of the matrix resin to glass fibers is not impaired and excessive hardening of texture does not occur. A surface-treated glass cloth including a surface treatment layer on a surface thereof, wherein the surface treatment layer contains a silane coupling agent and a resin for surface treatment, and the resin for surface treatment contains a structural unit derived from a styrene-based monomer and has an integral value of a proton peak attributed to a benzene ring that falls within a range of 28 to 46% of an integral value of all proton peaks, as measured by 1H-NMR.

Dependencies are inferred from the claim text.