×

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

  • US 4,913,830 A
  • Filed: 01/09/1989
  • Issued: 04/03/1990
  • Est. Priority Date: 07/24/1987
  • Status: Expired due to Fees
First Claim
Patent Images

1. A post-treated 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 an average value of from 0.2 to about 100, and z is 4 to 8, and post-treating said adduct with a boron compound.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×