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. 08, 1988
Filed:
Dec. 14, 1987
Applicant:
Inventors:
Ryosuke Sako, Hiratsuka, JP;
Takao Ogino, Yokohama, JP;
Motoki Kanazawa, Kanagawa, JP;
Akira Nishihara, Yokohama, JP;
Hiroshi Okita, Kanagawa, JP;
Yoshinori Sakamoto, Sakai, JP;
Assignee:
Nihon Parkerizing Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
148-627 ; 4273882 ; 4273884 ; 427409 ; 148-62 ;
Abstract
A hydrophilic coating is formed on an aluminum surface by the application of an aqueous solution of an amphoteric acrylamide polymer which is dried in place. The polymer solution may contain a cross-linking agent and the dried coating may be subsequently treated to form a water-glass coating.