RTM molding method
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United States of America Patent
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Aug 31, 2010
Grant Date -
Feb 26, 2009
app pub date -
Jul 27, 2006
filing date -
Jul 27, 2005
priority date (Note) -
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Abstract
Provided is an RTM molding method enabling to yield an FRP molded body formed so as to be increased in the fiber volume content and to thereby be made more excellent in strength and lightweightness. The resin composition is a chain-curing resin composition, and after the initiation of the curing of the resin composition, the highest temperature at the curing head of the resin composition, undergoing chain curing, within 10 seconds after the initiation of the curing is increased to be higher by 50° C. or more than the temperature of the resin composition at after the impregnation and before the curing, and thus, the resin composition is chain-cured with a Vf of 41% or more.
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