| http://www.w3.org/ns/prov#value | - A suitable substrate is selected and a surface is treated with a desensitizer selected from the group consisting of (a) hydrazine, (b) a substituted hydrazine having the structural formula ##STR1## where R1 is an organic radical selected from the group consisting of alkyl, cycloalkyl, aryl, alkaryl, aralkyl, alkoxy, aryloxy and heterocyclic radicals and R2, R3 and R4 are the hydrogen radical or ar
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