Molding Material, Method For Producing Molding Material, Molded Article, And Method For Producing Molded Article
AssigneeSeiko Epson Corporation
InventorsMasaaki AOTA, Tomohiro FUJITA
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Abstract
The molding material of the present disclosure contains organic fibers that do not melt at 200° C., and a polymer blend of a thermoplastic resin that melts at 200° C. or lower and a thermosetting polyurethane. The content of the thermosetting polyurethane in the molding material is preferably 10.0% by mass or more and 40.0% by mass or less.
Claims12
A molding material comprising:
- organic fibers that do not melt at 200° C.;
- and
- a polymer blend of a thermoplastic resin that melts at 200° C. or lower and a thermosetting polyurethane.
A method for producing a molding material, the method comprising a heating and kneading step of kneading organic fibers that do not melt at 200° C., a thermoplastic resin that melts at 200° C. or lower, and a thermosetting polyurethane while heating such that the thermoplastic resin and the thermosetting polyurethane melt.
A method for producing a molded article, the method comprising:
- a heating and kneading step of kneading organic fibers that do not melt at 200° C., a thermoplastic resin that melts at 200° C. or lower, and a thermosetting polyurethane while heating such that the thermoplastic resin and the thermosetting polyurethane melt to obtain a molding material containing the organic fibers and a polymer blend of the thermoplastic resin and the thermosetting polyurethane;
- and
- a molding step of molding the molding material while heating to a temperature at which the polymer blend melts, wherein
- a content of the thermosetting polyurethane in the molding material is 10.0% by mass or more and 40.0% by mass or less,
- a content of the thermoplastic resin in the molding material is 20.0% by mass or more and 75.0% by mass or less,
- a content of the organic fibers in the molding material is 10.0% by mass or more and 55.0% by mass or less,
- the organic fibers are at least one kind selected from the group consisting of cellulose fibers and fibers made of a thermoplastic resin,
- the organic fibers are a defibrated product of a fabric,
- a heating temperature in the heating and kneading step is 150° C. or higher and 200° C. or lower, and
- a heating temperature in the molding step is 160° C. or higher and 200° C. or lower.
Dependencies are inferred from the claim text.