MATERIALS THAT PROVIDE BIORESISTANCE AND/OR DEFOAMING AND SLOWER COOLING PROPERTIES FOR AQUEOUS QUENCHANTS
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United States of America Patent
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Apr 14, 2016
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Apr 15, 2015
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Abstract
Methods and compositions are provided for heat treating, e.g. quenching a metal. The quenching composition includes a composition that comprises a polyamidopolyamine compound having a molecular weight of about 500 to about 100,000 and comprising a pendent amino group; and/or a non-polymeric amidoamine having a molecular weight of about 290 to about 5000 and comprising an amino group; and a hydroxyl containing diluent. These compositions impart one or more of the functions of quenching, lubricity, anti/low foaming and/or bioresistance to the quenching fluid.
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