Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
Manufacturing method of prefrom for composite material of automobile
 The present invention relates to a manufacturing method of preform for composite material of automobile, in particular, to an economical and easy mass-production manufacturing method of preform including the steps of manufacturing a wet sheet by pouring a suspension prepared by adding inorganic binder, organic binder and cohesion agent to reinforced fiber, into vacuum suction equipment, and forming the sheet into a cylindrical shape with cylindrical press and deforming the sheet form before drying. 
Hyundai Motor Company
B B B C C B B C
B28B B28B B28B C04B C04B B28B B28B C04B
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Jun-Su
Kim