Magazine Article

Diaminobenzoquinones as Corrosion-Inhibiting Additives

TBMG-3170

05/01/2002

Abstract
Content

Non-polymeric N,N´-di-N-hydrocarbyl- 2,5-diamino-1,4-benzoquinones (where the hydrocarbyl substituents are alkyl or aryl) have been found to be useful as corrosion-inhibiting additives for paints and other conventional coating materials that are applied to steel and other metals. Prior coating additives made from reactions of benzoquinones with diamines are polymeric. Such polymers are expensive and difficult to make. Moreover, being polymers, they cannot diffuse much and hence are believed not to protect uncoated areas of metal against corrosion. In contrast, when used in proper concentrations, the present non-polymeric diaminobenzoquinones provide enhanced protection that extends somewhat from the edges of coats into uncoated areas — an important advantage in situations in which there are imperfections (e.g., gaps, scratches, and blisters) in coats of paint.

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Citation
"Diaminobenzoquinones as Corrosion-Inhibiting Additives," Mobility Engineering, May 1, 2002.
Additional Details
Publisher
Published
May 1, 2002
Product Code
TBMG-3170
Content Type
Magazine Article
Language
English