Patent ID: 11926073
Assignee: DIC CORPORATION
Field: Other special machines (Mechanical engineering)
Classification: CPC B  C | IPC B  C

Claim 0:
1. A method for producing a sheet molding compound, comprising impregnating a resin composition into carbon fibers, wherein the bulkiness Ho of the carbon fibers before an impregnation step, as measured by a laser displacement sensor, is 3 mm or more, the compression ratio Rc (Hc/Ho) of the carbon fibers in the impregnation step is 0.003 to 0.75, the thickness of the sheet molding compound is 10 mm or less, and the content Wc of the carbon fibers is 40% by mass or more, wherein Hc is the bulkiness (mm) of the carbon fibers after the impregnation step, and Ho is the bulkiness (mm) of the carbon fibers before the impregnation step.