Process for producing prepreg
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United States of America Patent
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-
Mar 18, 1997
Issued Date -
N/A
app pub date -
Dec 12, 1994
filing date -
May 27, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides a prepreg obtained by stretching a material including, as a main component, an ultra-high-molecular-weight polyethylene having an intrinsic viscosity of 5-50 dl/g as measured at 135.degree. C. in decalin, to a total draw ratio of at least 20, subjecting the resulting stretched polyethylene material to a splitting treatment, and impregnating the resulting material with a thermosetting resin, and a process for producing said prepreg. The split stretched polyethylene material has improved adhesion to the impregnant resin and can be used as a good base material for prepreg.
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