Polypropylene fiber for reinforcement of matrix materials
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United States of America Patent
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Apr 27, 2010
Grant Date -
Jul 2, 2009
app pub date -
Nov 4, 2008
filing date -
Jun 10, 2005
priority date (Note) -
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Abstract
Disclosed are structural materials including polymeric reinforcement fibers that can provide added strength and fracture toughness to the matrix. The polymeric reinforcement fibers are polypropylene-based monofilament fibers or tape fibers exhibiting extremely favorable mechanical characteristics for structural reinforcement including modulus greater than 12 MPa and elongation less than about 10%. The disclosed reinforced composite materials can exhibit desired average residual strength values with less total fiber loading necessary to attain the ARS values as compared to previously known polymer reinforced materials. Very high strength and fracture toughness can be attained in the disclosed composite materials.
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