Surface treatment of metal.

摘要

A method of inhibiting corrosion of a metal surface comprises applying to the metal surface an organic solvent in which is dissolved a phosphate monoester of a hydroxyalkyl acrylate or a hydroxyalkyl alkylacrylate which phosphate monoester has the general formula,
<Chemistry id="chema01" num="0001"><Image id="ia01" he="22" wi="67" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>where
<UnorderedLists id="ula01" listStyle="none"><ListItem>R, is hydrogen, a methyl group or an ethyl group</ListItem><ListItem>R<Sub>2</Sub> is an alkyl group having from 2 to 10 carbon atoms and</ListItem><ListItem>n is a positive integer from 1 to 20</ListItem></UnorderedLists>

The solution may also contain a diester of a hydroxyalkyl acrylate, a diester of a hydroxyalkyl alkylacrylate, hydroxyalkyl acrylate or hydroxyalkyl alkylacrylate.

The method may also improve the adhesive strength of a subsequently applied protective coating e.g. paint.