POLYMER COMPOSITE MATERIALS
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United States of America Patent
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Issued Date -
May 10, 2012
app pub date -
Apr 20, 2010
filing date -
Apr 21, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A polymer composite material (10, 110, 210, 310) is described. The material includes a settable matrix material (12), a plurality of reinforcement members (14) and a plurality of capsule members (16). Each capsule member (16) includes a shell layer (22) encapsulating an indicator material (24). The polymer composite material comprises an initial condition in which each shell layer contains the indicator material, and a damaged condition in which at least one shell layer is ruptured, releasing indicator material. The polymer composite material is changed from the initial condition to the damaged condition by the application of a predetermined force to the polymer composite material.
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