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US 10,300,632 B2Granted
Method of producing preform
AssigneeMitsubishi Chemical Corporation
InventorYoshihide Kakimoto
Life of this patent
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Abstract
A method of producing a preform, having a step for preparing a sheet-shaped prepreg and a preform mold having a forming surface and a separable portion constituting at least a portion of the forming surface, forming the prepreg using the preform mold, and then removing the preform together with the separable portion from the preform mold.
Claims11
A method of producing a preform, the method comprising:
- situating a sheet-shaped prepreg comprising reinforcement fibers and at least one resin into a preform mold having a forming surface and a separable portion constituting at least a portion of the forming surface;
- and
- removing the preform from the preform mold together with the separable portion after forming the prepreg with the preform mold,
- wherein the separable portion is formed of a material that is not deformed at a temperature at which the prepreg is formed into the shape of the preform.
1 more element
Dependencies are inferred from the claim text.