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. 20, 1994
Filed:
Apr. 17, 1992
Applicant:
Inventor:
John R Lawson, Manchester, GB;
Assignee:
Zeneca limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ; C10M / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
252 / ; 106 1415 ; 106 1431 ; 106 1437 ; 564265 ; 564325 ; 564337 ; 564390 ;
Abstract
A polyphenol compound wherein the aromatic rings are linked by direct bonds or by a divalent link in the ortho position relative to the --OH group and the end aromatic rings contain either oximino substituents or substituted alkylaminomethyl substituents in the ortho position. The compound can be coated onto a metal surface to give improved corrosion resistance. The metal surface can be zinc-coated steel or zinc phosphated steel. The polyphenol compound can be the only coating material or can be incorporated into a surface coating composition such as a paint.