Dispersing additive compositions for lubricating oils and their manufacture
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United States of America Patent
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Dec 24, 1985
Grant Date -
N/A
app pub date -
Feb 3, 1984
filing date -
Feb 4, 1983
priority date (Note) -
Expired
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Abstract
An additive composition having a dispersing effect in lubricating oils is obtained by reacting at least one substituted succinic anhydride with at least one alkylphenol and with hexamethylene tetramine, preferably in respective proportions of from 1 to 2 moles of substituted succinic anhydride per mole of the alkylphenol and from 1.2 to 2 amino equivalents of hexamethylene tetramine per mole of the substituted succinic anhydride.
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