Process for the production of a glass fiber reinforced polymer tape, and tape so produced

Abstract

A process for the production of a glass fiber reinforced polymer tape includes a) unwinding from a package of at least one continuous glass multifilament strand; b) applying the impregnating agent to the continuous glass multifilament strands to form the impregnated continuous multifilament strands; c) applying a sheath of thermoplastic polymer around said multifilament strand to form a sheathed continuous multifilament strand, d) providing the plurality of sheathed continuous multifilament strands obtained in step c), e) placing the plurality of sheathed continuous multifilament strands in parallel alignment in the longitudinal direction, f) grouping the plurality of sheathed continuous multifilament strands, wherein steps e) and f) are performed such that the sheathed continuous multifilament strand can be consolidated and g) subsequently consolidating the plurality of sheathed continuous multifilament strands to form a tape, wherein the tex number of the glass multifilament strand is in the range from 520 to 980, and the amount of the at least one continuous glass multifilament strand in the composition is from 55 to 70 wt % on the basis of the total weight of the composition. The tape produced from the process has improved mechanical performance and low warpage when made into laminates.

Dependencies are inferred from the claim text.