Lightweight composite material with a thermoset matrix
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United States of America Patent
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Nov 16, 1993
Grant Date -
N/A
app pub date -
Jun 1, 1990
filing date -
Jun 13, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Lightweight composite material which contains reinforcing fibres in a thermoset matrix and has been obtained by providing voluminous three-dimensional structures of reinforcing fibres more than 50 mm long, which are in the form of a knitted fabric or loop fabric with a hollow space content of at least 50 vol. %, with a thermosetting resin such that the lightweight composite material contains hollow spaces.
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