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Home › Ester-free synthetic lubricating oils comprising polybutenyl substituted succinic acid or anhydride and hydrocarbon polymer

Ester-free synthetic lubricating oils comprising polybutenyl substituted succinic acid or anhydride and hydrocarbon polymer

US Patent 5972852 · Granted Oct 26, 1999

Estimated economic value: $181,937,000 ⓘ

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