Foamed glass fiber-reinforced thermoplastic composition

Abstract

The present invention relates to a foamed glass fiber-reinforced thermoplastic composition comprising, based on a total weight thereof, (a) 30-90 wt % of a thermoplastic polymer matrix, (b) 10-70 wt % of glass fibers and (c) 0.5-20 wt % of an impregnating agent, wherein the density reduction rate of the foamed glass fiber-reinforced thermoplastic composition is at least 30%, wherein the density reduction rate is calculated as (dunfoamed−dfoamed)/dunfoamed, in which dfoamed is the density of the foamed glass fiber-reinforced thermoplastic composition, and dunfoamed is the density of the same glass fiber-reinforced thermoplastic composition which is un-foamed. The present invention also relates to a method to produce the foamed glass fiber-reinforced thermoplastic composition, as well as to an article produced from the foamed glass fiber-reinforced thermoplastic composition. Because of the low dielectric constant of the foamed glass fiber-reinforced thermoplastic composition, the produced article can be used in various fields and applications, such as in antenna housing or cover.

Dependencies are inferred from the claim text.