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Lactone modified, esterfied or aminated additives useful in oleaginous compositions and compositions containing same

  • US 4,866,141 A
  • Filed: 10/07/1986
  • Issued: 09/12/1989
  • Est. Priority Date: 10/07/1986
  • Status: Expired due to Fees
First Claim
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1. A C5 -C9 lactone derived material useful as an oil additive and formed by simultaneously reacting at a temperature of from about 100°

  • to about 220°

    C. for a period of from about 1 to about 10 hours a hydrocarbyl substituted C4 -C10 dicarboxylic acid producing material with a C5 -C9 lactone and a member selected from the group consisting of (a) a polyamine having from about 2 to 60 total carbon atoms and from about 2 to about 12 nitrogen atoms, (b) an aliphatic polyhydric alcohol containing up to about 100 carbon atoms and from about 2 to about 10 hydroxyl groups, (c) an amino alcohol containing up to about 50 total carbon atoms, from 1 to about 3 nitrogen atoms and from 1 to about 15 hydroxyl groups, or (d) mixtures thereof, said hydrocarbyl substituted acid producing material being formed by reacting an olefin polymer of a C2 -C10 monoolefin having a number average molecular weight of about 300 to about 10,000 and a C4 -C10 monounsaturated dicarboxylic acid material, selected from the group consisting of acids, esters and anhydrides wherein there are an average of from about 0.7 to about 2.0 molar equivalents of dicarboxylic acid producing moieties per molar equivalent of said olefin polymer used in the reaction, said C5 -C9 lactone having undergone ring opening polymerization such that the degree of polymerization of said C5 -C9 lactone in the final C5 -C9 lactone derived material is from about 0.2 to about 100.

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