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US 9,309,383 B2Granted
Composition for injection molding, sintered compact, and method for producing sintered compact
AssigneeSeiko Epson Corporation
InventorsNobuyuki Hamakura, Hidefumi Nakamura
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Abstract
A composition for injection molding includes: an inorganic powder composed of at least one of a metal material and a ceramic material; and a binder containing a polyacetal-based resin, an unsaturated glycidyl group-containing polymer, and a lubricant. In the composition, the unsaturated glycidyl group-containing polymer is contained in an amount of 1% by mass or more and 30% by mass or less with respect to the amount of the polyacetal-based resin.
Claims12
A composition for injection molding, comprising:
- an inorganic powder composed of at least one of a metal material and a ceramic material;
- and
- a binder containing a polyacetal-based resin, an unsaturated glycidyl group-containing polymer, and a lubricant,
- wherein the unsaturated glycidyl group-containing polymer is contained in an amount of 1% by mass or more and 30% by mass or less with respect to the polyacetal-based resin, and
- the composition has:
- a first layer that is composed mainly of the unsaturated glycidyl group-containing polymer and covers each particle of the inorganic powder, and
- a second layer that is composed mainly of the polyacetal-based resin and located outside the first layer.
4 more elements
Dependencies are inferred from the claim text.