Pultruded fiber reinforced plastic marking devices

Abstract From the Canadian patent

Pultruded marking devices (29,42,45,48,50,55,57,58) made of fiber reinforcement materials (10,14,16,17) embedded in a cured polyester resin matrix (65) that contains about 2% to 25% by weight of cellulose solid particulates. Unidirectional reinforcement materials (10) are the major portion of the reinforcement materials and form about 30% to 60% by weight of the total weight of the marking devices. The addition of cellulose particulates to the polyester resin formulation improves the "fill" of the resin and reinforcement package. The term "fill" means the ability of the total resin and reinforcement package to utilize all of the available space in the pultrusion die. A package which does …