Fabric prepreg by two distinct thermosetting matrixes
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United States of America Patent
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Feb 16, 2010
Grant Date -
Jul 17, 2008
app pub date -
Feb 16, 2005
filing date -
Feb 27, 2004
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Abstract
The present invention relates to a preimpregnated main fabric (1') provided with reinforcement (2) having a bottom face (F') impregnated with a first thermosetting matrix (5) and a top face (F) impregnated with a second thermosetting matrix (6). The invention is remarkable in that the first and second thermosetting matrices (5, 6) have different physico-chemical and rheological properties.
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