Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Reexamination Certificate
2007-11-13
2007-11-13
Lee, Edmund H. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
C264S328800, C264S328180
Reexamination Certificate
active
10716190
ABSTRACT:
To control the thickness of the skin layer of a composite resin molded product by a viscosity difference obtained by varying the viscosity by adding another ultra-minute substance to a raw resin material.The composite resin molded product comprising the skin layer formed of a first thermoplastic resin and the core layer formed of a second thermoplastic resin is molded by injection. The viscosity difference between the resins is controlled by adding a carbon nanomaterial to one or the other of the thermoplastic resins. The thickness of the skin layer is controlled by the viscosity difference. The first thermoplastic resin and the second thermoplastic resin are of the same kind or different kinds of resins.
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Jody Erickson, Incorporating Carbon Nanotubes into Polypropylene Fibers, 2003, p. 54.
Koide Atsushi
Suganuma Masashi
Yamagiwa Yoshitoshi
Lee Edmund H.
Nissei Plastic Industrial Co. Ltd.
Weingarten Schurgin, Gagnebin & Lebovici LLP
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