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. 12, 1991
Filed:
Apr. 20, 1988
Peter J Richardson, Rochdale, GB;
Bernard Tury, Prestwich, GB;
Imperial Chemical Industries plc, London, GB;
Abstract
A composition which comprises (a) a salt of a metal (M) of a hydroxycarboxylic acid in which the OH and COOH groups are attached to the ring atoms of a fused ring system and (b) a surface coating compound or composition. The metal (M) is at least divalent and may be magnesium, calcium, barium or particularly zinc. The fused ring system is preferably a fused aromatic hydrocarbon ring system such as naphthalene. The OH and COOH groups can be attached to adjacent carbon atoms of fused hydrocarbon ring system. Zinc 3-hydroxy-2-naphthoate has been found to be particularly suitable. The composition may also include a metal oxide and/or a metal phosphate. Component (b) can be a film forming binder system, a natural oil or a grease. The composition can be coated onto the surface of a metal. The coated metal shows improved resistance to corrosion.