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Lactone-modified, mannich base dispersant additives useful in oleaginous compositions

  • US 4,828,742 A
  • Filed: 07/24/1987
  • Issued: 05/09/1989
  • Est. Priority Date: 07/24/1987
  • Status: Expired due to Term
First Claim
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1. A poly(C5 -C9 lactone) modified Mannich base useful as an oil additive and formed by reacting a C5 -C9 lactone, an amine, an aldehyde, and a hydrocarbyl hydroxy aromatic compound, said hydrocarbyl substituted hydroxy aromatic compound being formed by reacting an olefin polymer of a C2 -C10 monoolefin having a number average molecular weight of about 700 to about 10,000 and a hydroxy aromatic material, and said poly (C5 -C9 lactone) modified Mannich base adduct containing the unit ##STR14## wherein m has a average value of from 0.2 to about 100, and z is 4 to 8.

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