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:
Dec. 04, 2012
Filed:
Dec. 05, 2007
Masanori Naritomi, Tokyo, JP;
Naoki Andoh, Tokyo, JP;
Masanori Naritomi, Tokyo, JP;
Naoki Andoh, Tokyo, JP;
Taisei Plas Co., Ltd., Tokyo, JP;
Abstract
A composite of a magnesium part or a magnesium alloy part and a resin composition, improved to have high corrosion resistance, is manufactured by: a step of shaping a magnesium alloy partfrom a casting or an intermediate material; a step of immersing and chemically etching the shaped part in an acidic aqueous solution; a step of immersing the chemically etched shaped part in an aqueous solution containing potassium permanganate and forming on the surface thereof a thin layer having manganese oxide as a component; a step of inserting the part, on which the thin layer has been formed, into a metallic mold for injection molding and injecting into the mold a resin composition selected out of a resin composition whose main component is polyphenylene sulfide, a resin composition whose main component is a polybutylene terephthalate resin and a resin composition whose main component is an aromatic polyamide resin and then integrally affixing the magnesium alloy partand the resin composition; and a step of subjecting the integrally affixed compositeto a chemical conversion treatment by immersing it again in a magnesium alloy chemical conversion treatment solution.