Polypropylene Fiber for Reinforcement of Matrix Materials: No. 7,445,834; Brian Morin, Greenville, SC.Polypropylene Fiber For Reinforcement Of Matrix Materials: No. 7,445,834; Brian Morin, Greenville, SC. Filed 6/10/05. Issued 11/4/08.
Patented is a composite material composite material or composite, any material made from at least two discrete substances, such as concrete. Many materials are produced as composites, such as the fiberglass-reinforced plastics used for automobile bodies and boat hulls, but the comprising a matrix material and a plurality of discrete polymeric polymeric /poly·mer·ic/ (pol?i-mer´ik) exhibiting the characteristics of a polymer.
1. Having the properties of a polymer.
2. fibers defining a length of less than about five inches dispersed throughout the matrix material. The polymeric component of the fibers is selected from the group consisting of polypropylene homopolymers, polypropylene copolymers and mixtures thereof.
The fibers describe an elastic modulus elastic modulus
or elastic constant
In materials science and physical metallurgy, any of various numbers that quantify the response of a material to elastic or springy deflection. greater than about 10 GPa and an elongation of less than about 10%. The composite material exhibits an average residual strength Residual strength is the load or force (usually mechanical) that a damaged object or material can still carry without failing. greater than about 1.5 MPa at a fiber load value of less than about 14 pounds of fibers per cubic yard of matrix material.