Inventors:
Robert J. Sturwold - Cincinnati OH
Walter E. Utz - Cincinnati OH
Nicholas Christ - Richmond VA
William R. Ford - Richmond VA
George P. Koch - Richmond VA
Assignee:
Emery Industries, Inc. - Cincinnati OH
Reynolds Metals Co. - Richmond VA
International Classification:
C21D 100
Abstract:
This invention relates to useful protective compositions, a method for protecting aluminum and aluminum alloy products against water staining, and a protected aluminum sheet. The method involves applying a continuous film of a protective composition to the surface of the aluminum product. The protective compositions useful for the invention are blends or reaction products of a polybasic acid and a partial ester of a polyol.