Polyisobutylene succinimide and ethylene-propylene succinimide synergistic additives for lubricating oils compositions
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United States of America Patent
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Sep 12, 2000
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N/A
app pub date -
May 7, 1992
filing date -
May 7, 1992
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Abstract
A lubricating oil composition comprising: (a) a major amount of an oil of lubricating viscosity; and (b) a minor dispersant amount of a synergistic combination of an antioxidant-dispersant additive and a dispersant additive, said combination comprising: (i) a polyisobutylene succinimide; and (ii) an ethylene-propylene succinimide.
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