Tape and products containing the same

A fibrous tape comprising fused polymeric fibers, wherein at least 75 mass % of the fused polymeric fibers are oriented so as to be substantially in parallel along a common direction, and wherein

• the polymeric fibers have a fiber length and abutting ones of the polymeric fibers are fused to each other over an abutting length of at least 50% of the fiber length, and wherein
• the fibrous tape has a tape thickness from 1 μm to 200 μm, a tape width, and a coefficient of variation (CV) of the tape thickness across the tape width of at most 6%, wherein the CV of the tape thickness is calculated by:
• (i) obtaining a cross section of the tape by embedding the tape in epoxy resin and cutting slices of the embedded tape-resin system;
• (ii) selecting an enlargement using a microscope such that the width of the tape is equal to about 40 times the thickness of the tape;
• (iii) taking 5 measurements of the local thickness of the tape, evenly distributed across the width of the tape;
• and
• (iv) dividing the standard deviation of the 5 measurements by the average of the 5 measurements.