Importance

Loading Importance Indicators...

Abstract

An aqueous solution is provided that includes an alkylated amine having an amine group and present from 6 to 40 total weight percent. A polyacid having carboxylic groups of a C₅-C₁₄ dicarboxylic acid, a polymeric acid having a plurality of acid groups, or a combination thereof is also present in the solution so as to result in a ratio of acid groups to amine group equivalents of at least 1.8:1. An aqueous solution is also provided in which the alkylated amine is 3-amino-4-octanol. The solutions provided have extended operating lifetimes relative to microbial growth, reduce staining of contacting metal substrates, or both. Some alkylated amines are soluble beyond aqueous solubility limits through the inclusion of the polyacids. A method of metalworking includes exposing a metal substrate to the aqueous solution. Followed by removing or displacing a portion of the metal substrate.

Loading the Abstract Image...

First Claim