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:
Mar. 17, 1987
Filed:
Oct. 11, 1985
Yoichi Kitamura, Yokohama, JP;
Hisashi Hotta, Yokohama, JP;
Toyo Seikan Kaisha, Ltd., Tokyo, JP;
Abstract
Surface treatment of metal blanks is achieved by applying an oxirane ring-containing compound in the gas phase to the surface of a metal blank maintained at a high temperature. According to this method, a covering layer which is much thinner than a conventional so-called adhesive primer coating layer and has a thickness of the angstrom order is formed on the surface of a metal blank. If a thermoplastic resin layer is coated on the metal surface treated with this oxirane ring-containing compound, the initial adhesion and the adhesion after lapse of time are highly improved over these adhesions attainable by the conventional methods. Even if a lacquer containing a thermosetting resin instead of the thermoplastic resin is coated and dried on the metal surface treated with this bonding compound, a similar effect can be attained. Accordingly, when an organic material is bonded or laminated to the so-treated metal surface or when metal-to-metal bonding is performed, a strong bonding can be maintained in the bonded portion.