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US 5,104,718 AGranted
Prepreg and process for producing the same
AssigneeMitsubishi Rayon Co., Ltd.
InventorsShiro Asada, Ikuo Takiguchi, Akira Agata, Toshihiro Hattori
Life of this patent
Estimating the term…
Abstract
A novel unidirectionally paralleled fiber reinforced thermosetting resin prepreg excellent in moldability which has plural grooves arranged continuously in longitudinal direction on at least one side surface thereof.
Claims7
A unidirectionally paralleled fiber reinforced thermosetting resin prepreg which has a plurality of grooves arranged continuously in longitudinal direction on at least one side surface thereof, wherein the depth of said groove is 15-70% relative to the thickness of said prepreg and the pitch of said groove is 0.5-5 mm.
Dependencies are inferred from the claim text.