Patent ID: 8304483

Claim:
A feedstock concentrate material, comprising: a fibrous phase including greater than 20 percent by weight of glass fibers based on the total weight of the concentrate material, wherein the glass fibers are aligned generally axially with each other; and a polymeric phase including i) at least 50 percent by weight of the polymeric components of the polymeric phase of a first polypropylene having a first melt flow rate; ii) a second polypropylene having a second melt flow rate that is higher than the first melt flow rate; and iii) a maleic anhydride grafted polypropylene coupling agent; wherein the first polypropylene, the second polypropylene, and the coupling agent are all present in the feedstock concentrate material; the coupling agent is different from the first polypropylene and the second polypropylene; and the feedstock concentrate material is produced by a pultrusion process and is in the form of pellets, rods, or granules.