HEAT-TREATMENT OIL COMPOSITION
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United States of America Patent
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Issued Date -
Sep 5, 2024
app pub date -
Jun 13, 2022
filing date -
Jun 15, 2021
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Abstract
A problem is to provide a heat treating oil composition containing a sulfur compound that is excellent in brightness of a metal material after a heat treatment, such as quenching, and in storage stability. The problem is solved by a heat treating oil composition containing one or more kinds of base oils (A) selected from the group consisting of a mineral oil (A1), a synthetic oil (A2), and a vegetable oil (A3), and a sulfur compound (B), the sulfur compound (B) containing one or more kinds selected from the group consisting of a particular sulfide compound (B1), a particular sulfide compound (B2), and a particular thiazole compound (B3).
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