公开(公告)号：US3870643A

公开(公告)日：1975-03-11

申请号：US32857273

申请日：1973-02-01

Applicant: CITIES SERVICE OIL CO

Inventor： KERSCHNER PAUL M ,  MARCELLIS ALPHONSO W

IPC: C08G63/42 ,  C08G63/46 ,  C10L1/19 ,  C10L1/198 ,  C10M169/00 ,  F02B75/02 ,  C10M1/26

CPC classification number: C10L10/08 ,  C08G63/42 ,  C08G63/46 ,  C10L1/1915 ,  C10L1/1983 ,  C10L1/1986 ,  C10L10/04 ,  C10M1/08 ,  C10M2209/105 ,  C10M2209/109 ,  C10N2240/105 ,  F02B2075/025

Abstract: An additive having detergency and lubricity properties for incorporation in petroleum hydrocarbon and petroleum hydrocarbon compositions containing said additive. The additive is the condensation product of a polyetherpolyester polyol containing from 2 to about 12 hydroxyl groups and a monocarboxylic acid wherein about 85-100 percent of the hydroxyl groups of the polyol are esterified by condensation with the monocarboxylic acid. The additive is generally incorporated in hydrocarbon fuels and hydrocarbon lubricating oils, but its greatest utility is in hydrocarbon lubricating oils. The preferred lubricating oil composition is a two-cycle engine oil comprising a major proportion of a hydrocarbon lubricating oil and a minor proportion of the additive of this invention.