Resin formulation
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United States of America Patent
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Issued Date -
Oct 23, 2003
app pub date -
Apr 17, 2002
filing date -
Apr 17, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention provides a composite part comprising a matrix and coated, hollow microspheres. The coated, hollow microspheres are generally polymeric spheres with an inorganic exterior coating such as calcium carbonate. In one embodiment, the composite part is a fenestration component formed by a pultrusion process, and may include reinforcing fiber material such as roving or mat. In some embodiments, the matrix is made from a curable precursor that includes a thermosetting resin and coated, hollow microspheres. A method for making a pultruded composite part incorporating coated, hollow microspheres is also provided.
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