Photocurable prepreg composition and production method thereof
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United States of America Patent
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-
Mar 27, 2001
Grant Date -
N/A
app pub date -
Feb 11, 1999
filing date -
Feb 13, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A photocurable prepreg composition which is characterized by easy control of a B stage state of a thermosetting resin such as an unsaturated polyester resin or an epoxy acrylate resin, excellent storage stability, and remarkable curability after being shaped; as well as a production method therefor. A photocurable prepreg composition which contains an unsaturated polyester resin and/or an epoxy acrylate resin; at least two photopolymerization initiators with photosensitivity in different wavelength ranges; and an inorganic or an organic fiber-reinforcing material and/or filler, and which composition is treated with light of a specific wavelength such that at least one photopolymerization initiator and radical-polymerizable unsaturated groups remain partially in said resin; a production method therefor; and formed articles produced therefrom.
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