Aqueous quenchants containing polyoxazolines and n-vinyl heterocyclic polymers and their use in quenching steel
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United States of America Patent
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Jul 9, 1985
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N/A
app pub date -
Oct 12, 1984
filing date -
Dec 16, 1983
priority date (Note) -
Expired
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Abstract
A process for quenching metals, particularly steel, using as the quenching bath an aqueous composition containing (a) a substituted oxazoline polymer and (b) an N-vinyl heterocyclic polymer or copolymer in which the heterocyclic group is composed of carbon, nitrogen and hydrogen. The quenching bath provides reduced cooling rates through the martensite temperature ranges.
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