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. 20, 1990
Filed:
Dec. 15, 1988
Applicant:
Inventors:
Shingo Nomura, Akashi, JP;
Hirohiko Sakai, Kakogawa, JP;
Kanji Nakamura, Kakogawa, JP;
Etuo Yamamoto, Itami, JP;
Assignee:
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428623 ; 4273884 ; 428626 ; 428632 ; 428659 ;
Abstract
A corrosion preventive steel sheet having an organic coating layer is described. The steel sheet is comprised of a zinc alloy-plated steel sheet, and a chromate layer and an organic coating layer formed in this order on at least one side of the steel sheet. The organic coating layer is formed from a coating composition comprised of 100 parts by weight of a water-soluble urethane resin and from 5 to 80 parts by weight of colloidal silica. A method for making the corrosion preventive steel sheet is also described.