COMPOSITION FOR FIBER-REINFORCED COMPOSITE MATERIAL, PREPREG, AND FIBER-REINFORCED COMPOSITE MATERIAL
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United States of America Patent
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May 12, 2016
app pub date -
May 20, 2014
filing date -
May 20, 2014
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Abstract
There is provided a composition for a fiber-reinforced composite material, the composition being capable of forming the fiber-reinforced composite material having a long pot life, the excellent work stability, and a high heat resistance. The composition for a fiber-reinforced composite material according to the present invention contains a radically polymerizable compound (A) having not less than two radically polymerizable groups in one molecule thereof, a cationically polymerizable compound (B) having not less than two cationically polymerizable groups in one molecule thereof, a radical polymerization initiator (C) having a 10-hour half-life decomposition temperature of not less than 85° C.; and an acid generator (D) having an exothermic onset temperature of not less than 100° C. as measured using a differential scanning calorimeter (DSC) at a temperature-rise rate of 10° C./min, wherein the composition has a viscosity at 25° C. of not less than 10,000 mPa·s.
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