One-step process for preparation of thixotropic overbased calcium sulfonate complex thickened compositions
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United States of America Patent
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Apr 25, 1989
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N/A
app pub date -
Oct 15, 1987
filing date -
Oct 15, 1987
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Expired
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Abstract
An improved 1-step process is disclosed for the preparation of thixotropic overbased calcium sulfonate complex thickened compositions containing calcium sulfonate as the dispersing agent and containing CaCO.sub.3 in the form of calcite crystals in colloidal or extremely finely divided form.
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