The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 13, 2007
Filed:
Nov. 18, 2003
Atsushi Koide, Nagano-ken, JP;
Yoshitoshi Yamagiwa, Nagano-ken, JP;
Masashi Suganuma, Nagano-ken, JP;
Atsushi Koide, Nagano-ken, JP;
Yoshitoshi Yamagiwa, Nagano-ken, JP;
Masashi Suganuma, Nagano-ken, JP;
Nissei Plastic Industrial Co., Ltd., Nagano-ken, JP;
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.