Molded article, injection molding method and apparatus
AssigneeHitachi Maxell, Ltd.
InventorsAtsushi Yusa, Teruo Hori
Life of this patent
Estimating the term…
Abstract
A molded article includes thermoplastic resin, and an organic material different from the thermoplastic resin inside said molded article, the organic material being located on and near a surface of said molded article.
Claims14
A molded article comprising:
- thermoplastic resin;
- and
- an organic material, different from the thermoplastic resin inside said molded article, said organic material being located on and near a surface of said molded article.
A molded article comprising:
- thermoplastic resin, and
- an metallic element inside said molded article, said metallic element being located on and near a surface of said molded article.
A mold used to manufacture a molded article by injection-molding the thermoplastic resin, said mold comprising a mechanism for introducing, to said mold, supercritical fluid and a material dissolved in the supercritical fluid in a direction opposite to a flow direction of thermoplastic resin to be injected into the mold.
A mold used to manufacture a molded article by injection-molding the thermoplastic resin, said mold comprising convex or concave part that is formed at a specific position on a cavity forming surface of said mold, and connected to an inlet for injecting supercritical fluid and a material dissolved in the supercritical fluid.
An injection molding apparatus comprising:
- a mold that forms a cavity to be filled with thermoplastic resin;
- a plasticization cylinder that introduces the thermoplastic resin into the cavity in said mold;
- and
- a mechanism for introducing supercritical fluid and a material dissolved in the supercritical fluid, into said plasticization cylinder so that the supercritical fluid and the material may be included at least in a flow front of the thermoplastic resin.
An injection molding apparatus comprising:
- a mold that forms a cavity to be filled with thermoplastic resin;
- and
- a mechanism for introducing, into said mold, supercritical fluid and a material dissolved in the supercritical fluid as counterpressure.
An injection molding apparatus comprising:
- a mold that forms a cavity to be filled with thermoplastic resin, and has an inlet connected to a specific position in the cavity;
- and
- a mechanism for introducing, into the cavity through the inlet, supercritical fluid and a material dissolved in the supercritical fluid as counterpressure.
An injection molding apparatus comprising:
- a mold that forms a cavity to be filled with thermoplastic resin;
- a stamper to be compressed against the thermoplastic resin that has filled up the cavity, the stamper having a first surface that forms a predetermined pattern and is to be compressed against the thermoplastic resin, and a second surface that is opposite to the first surface and has a perforation connected to the pattern on the first surface;
- and
- a mechanism for introducing, into the cavity through the perforation in said stamper, supercritical fluid and organic material dissolved in the supercritical fluid.
Dependencies are inferred from the claim text.