Process for producing mixture of sulfurized alkaline earth metal salts of salicylic acid compound and phenol
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United States of America Patent
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Jul 23, 1996
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N/A
app pub date -
Apr 17, 1995
filing date -
Sep 18, 1992
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Expired
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Abstract
Disclosed is a process for producing a mixture of sulfurized alkaline earth metal salts of a salicylic acid compound and a phenol which comprises reacting either a mixture of reactants comprising a phenol, a dihydric alcohol, and an alkaline earth metal oxide and/or hydroxide or a mixture of these reactants and water, subsequently distilling off water and the dihydric alcohol, reacting the resulting bottom with carbon dioxide, and then adding a dihydric alcohol and elemental sulfur to the resulting reaction product to conduct sulfurization reaction.
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